Author Archives

بهار 1390

پنجشنبه ۲۶ اسفند ۱۳۸۹
/ / /

ملکی که پریشان شد از شومی شیطان شد         باز آن سلیمان شد تا باد چنین بادا

توضیح: عکس بالا رو جناب آقای کیهانی لطف کردند و برام فرستادند، ازشون تشکر میکنم و خوشحالم که افتخار آشنایی با یکی از بهترین طراحان گرافیک ایران رو دارم.

آدرس سایت ایشون :

http://www.shahramkayhani.com/

 

 

Read More

Play the Room

سه شنبه ۲۴ اسفند ۱۳۸۹
/ / /
Comments Closed

هزار بار گفتم هیچ چیزی نمیتونه جای آکوستیک و مکان بلندگو رو بگیره و اگر یادتون باشه نوشتم همه سیستم ها اگر بین 0 تا 100 امتیازدهی شوند تو آکوستیک خوب و با Placement خوب این درجات بین 100 تا 1000 شیفت پیدا میکنه. چه 500 میلیون پول سیستم صوتی بدید چه 500 هزار تومن تو شرایط نامناسب آکوستیکی بین 0 تا 100 درجا میزنید و فقط چیزی که رومی و جیم میگویند میتونه این معادلات رو به هم بریزه.

از ما گفتن از شما پول بیخود خرج کردن …

این ایده احمقانه باید عوض بشه که سیستم بدون Setup درست میتونه درست صدا بده. از نگاه من هر سیستمی نیاز به Setup درست بلندگو ، آکوستیک کردن اتاق و حذف لرزش و به حداکثر رسوندن وضعیت برق داره. بدون این کارها 500 میلیون هم پول بدید همون 0 تا 100 درجا زدید.

جیم اسمیت شروع کرده به نوشتن در مورد موضوع مکان بلندگو و با ابزاری که در اختیار داره سعی میکنه بهترین نقطه رو برای بلندگو بدست بیاره . مفهوم Play the room رو من اولین بار تو سایت رومی دیدم و همونطور که میدونید هم رومی هم جیم اسمیت هر دو تاثیر آکوستیک و مکان بلندگو رو خیلی خیلی بیشتر از بقیه اجزا میبینند.

درسته مورون ها (90 درصد آئودیوفیل های دنیا مورون طبقه بندی میشن) تو همه جای دنیا همش بحث های مورونی میکنند و صدای خوب رو فقط تابع کامپوننت میبینند اما شما باید بدونید اساس صدای خوب آکوستیک سیستم خوب هست و اگر اون نباشه هیچ تلاشی نتیجه ای که باید رو نمیده.

http://getbettersound.com/

http://getbettersound.com/consultation.html

Does your system “Play the Room?”

Introducing RoomPlay™ custom voicing (aka In-Home Consultation & System Voicing).

In a recent ad in Stereophile, Jim Smith said,

“Dear Audiophile:

As I’ve traveled around North America, voicing readers’ systems, three things have become very obvious:

1) Audiophiles have standards that are simply too low. They accept much less than they deserve (and much less than they paid to get).

2) It’s not really their fault. They simply don’t have a reference for how good their system can be.

3) Addressing how electrons travel in wire and electronics is one thing—addressing how sound waves are launched into the room and how they are received at the listening seat is far more critical and pays far bigger dividends.

Playing the Room

RoomPlay™ is my custom voicing service. Imagine that your listening room has no walls, no ceilings, and no speakers. The musicians have assembled to play a special concert, just for you. You feel the emotional impact of the music the next day, as if it had been a live concert.

I call it “playing the room.” Hence, RoomPlay.

Srajan Ebaen, Editor & Publisher at 6Moons.com, commented on my personal system:

“With my eyes closed, I attempted to obtain an aural signature of the room. I couldn’t. Nothing. There was very tacit recording venue data, yes—but none that portrayed the room itself. It had been entirely subtracted from the listening equation!

“This ‘no speaker!’ sensation was uncanny. Moreover, it was exceedingly tactile. That was clearly the result of meticulous setup… In short, Jim had banished from my awareness all reminders of mechanical sound sources and actual versus virtual environs.”*

Listen, a $10,000 system properly playing the room is vastly superior to a $100,000 system that isn’t.

Your most important component

Your most important component will always be your room. Proper voicing yields greatly enhanced dynamics,presence, live-liness, tone, and soundstaging. Therefore, your musical involvement is enhanced as well. That’s why the thing that’s been most edifying—and gratifying—to me is that my voicing clients are no longer replacing components. They are off the equipment merry-go-round. These days, they shop for music.

Glen F.: “Jim, I can’t tell you how much more involving my system is now. [My wife] listened to one of her favorite records last night and she was astonished with the changes. She even sent a text mess-age explaining to me how she now feels more part of the music.”*

Jerry P.: “It easily represented the best “bang for the buck” that I’ve spent on my system over the years. That’s as glowing an endorsement as I could make and I make it willingly.”*

All the best in music and sound,

PS—If you have a significant investment in your system, doesn’t it make sense to finally hear what you paid for?”

To learn more about RoomPlay, and why a custom voicing session can be the biggest improvement you can make in your system, read more below. If you have already read enough to know that this is something that interests you, contact Jim Smith – jim@getbettersound.com

Who is the typical RoomPlay client?

It’s someone who wants to extract far higher performance from his or her existing system.

Someone who has had little or no voicing assistance.

Someone who – more often than not – is time-poor.  They want to move their system to the next level.  But they want someone to come in and get it done.  They don’t have the time to do it themselves.  And they’ve finally realized that throwing more money at still another highly reviewed component will be money wasted, at least until the foundation for their system is built.

RoomPlay Details

Jim’s custom voicing service includes, but isn’t limited to, the following tools:

1/3 Octave Real Time Analyzer
Calibrated Microphone
15” MacBook Pro, optimized specifically for RoomPlay Applications
Bosch Laser Distance Meter
Four Laser Levels
Custom Grid System
Grid Tripods
Woodworx Acoustic Polarity Indicator
Ayre QB-9 DAC
Fluke VTVM
Mark-free Marking Tape
Marking Labels
First Reflection Point System
Selected Music from Top 185 Reference Disc List
Jim Smith’s 35 years of voicing experience and knowledge

The tools for this voicing kit are worth well over $10,000. You get the full benefits of it, but you don’t have to buy it, nor do you have to learn how to use these items (unless it interests you to so).

Contact Jim Smith to schedule or to make any inquiries

After your RoomPlay Session…

RoomPlay clients often get more excited about their systems than they have been previously.  So they have questions.  The price of the RoomPlay session includes free consultations by phone or e-mail for 12 months following the session.

RoomPlay™ Testimonials

Caution – unless you are considering having your system voiced, this section is long and perhaps more detailed than a casual reader would enjoy reading.

In addition to serving his long-time personal clients, recently Jim has been able to help a significant number of new people – mostly readers of Get Better Sound – in their homes, working in their rooms, voicing their systems.

The results have been consistently gratifying, not just for his clients, who can best be described as ecstatic over the improvements, but perhaps to his surprise, for Jim as well.

He has especially appreciated the ongoing contact with these clients and especially the fact that they really love their sound now, that they spent far less than they would have spent to buy almost any component, and perhaps most gratifying – that since the voicing session, they haven’t spent a dime on any more components!

Having received a large number of inquiries about in-home system voicing, Jim thought this description of a typical job would be useful. But he wouldn’t exactly call this a program. Because he never knows what he may encounter. However, there are some generalities that are illustrative:

“I’ve been doing these installations/voicings for years. In general, I like to arrive the evening before the day of the job – especially if I flew in, to give my hearing a break overnight. Depending on the time, it’s useful to check out the site and meet with the client that evening.

The next day is open, meaning that it may take as few as 6-8 hours or it may take 12 or more. For what it’s worth, in the past 30 years, I’ve never been able to complete a new system evaluation and voicing in less than about 8-10 hours. I don’t stop working until I know the system would satisfy me (which will be after you are already pleased). I do this within the context of using what you have on hand.

Also, we’ll create what I call a ‘roadmap’ in the manual. So you’ll have an idea of what you may want to do later, as well as what you shouldn’t…

I book a flight out the next morning.

Often I will drive, if it’s a drive of perhaps six hours or less.

I require my clients to commit the entire time to be with me when voicing a system. So if I came on a Wednesday, you’d have to be there all day.

Often a weekend is best for my clients, and I’m willing to do that at the same price.

If I fly, I ship in a kit of instruments/tools/recordings via FedEx Express or Ground that I’ll use, and I ask you to ship it back. The shipping is not expensive, but you would have to cover transportation both ways. Having insured this kit for voicing trips, I know that it’s worth (insured for) over $3,000. For you, it’s like getting the use of it without paying to rent or buy it.

Rarely, but once in a while, an unusually difficult situation might call for another day. Of course, I will share with you what I think needs doing if you don’t want to incur more expense at that time. If you opt to have me stay over, most of the time, it’s just a portion of the next day, and if I can still make my return trip later that same day, then the price for that second day is adjusted down accordingly.

But first and most important, we would need to have a phone conversation. From there, I can generally decide if I think it would be worth your time and expense. Occasionally, I have to tell folks that it might not be worth it based on certain restrictions they have.

I also recommend that folks get the Get Better Sound manual and go through it, both to get a feel for what I think is important, and – honestly speaking – for the feeling you get from reading how I write. If you are uncomfortable with what I say or how I say it, that should be a warning sign!”

The Concept

Virtually every audiophile that Jim has ever visited (many hundreds, if not thousands) has had a stereo system that was performing below – usually well below – the potential for that system in that room. This is true no matter how expensive the components are, whether or not the listening area is a dedicated room, or how knowledgeable the owner is reputed to be.

After 30+ years of installing and voicing systems that perform at a high level, Jim finally realized why this phenomenon was so depressingly true.

First, it had been apparent that he was working with many exceptionally bright people. People who were experts in their respective fields. But just as we wouldn’t recommend that you hire Jim to perform an intricate medical procedure, why would a cardiologist expect to be able to extract all of the performance from his/her music system? Reading magazines won’t impart the experience. Going to shows won’t either.

It all comes down to having a reference. The one universal comment that Jim reports hearing is that the client simply had no idea that the resulting sound was possible. He/she hadn’t heard it before, didn’t know if the room would be good enough, thought they needed “better equipment”, etc.

So not only do his voicing clients report vastly improved sound, now they have a reference for what is possible. It means that they can not only become far more involved in their music and the overall listening experience, they are now in a position to determine if a new component truly merits the expense.

If you’re unsure of what is entailed in a voicing session, perhaps reading the accounts below will be of assistance. Plus you can always Contact Jim Smith for more info.

Two additional points should be emphasized.

(1) It’s Jim’s goal to move your music system to another level of performance and involvement without replacing one single component.

(2) The improvement in your system should be by far the biggest you’ve ever experienced, well beyond that obtained by replacing any electronics or cables at any price.

The bottom line for clients

“…thought to myself that what you did was the best investment I had made for my Hi-Fi ever.”

“It easily represented the best “bang for the buck” that I’ve spent on my system over the years.”

Client accounts of what happened in a voicing a session

There have been some unsolicited posts on Internet Forums that describe Jim’s in-home voicing procedure.

The following is excerpted from one such account:

First off, Jim Smith is a class act all the way and is a walking encyclopedia of audio information. He was very professional and flexible from planning, execution and follow up. He did not know me at all until I gave him a phone call. If you have not bought his book yet then I would seriously recommend buying it and if you have the ability to pay for his on site services then I would highly recommend that as well. Jim was able to take my system to the next level with components I already had.

Keep in mind I am new to higher end audio so for me I needed to better understand what “good” is supposed to sound like. I had my own perception and felt my system was sounding great before Jim arrived.

This was Jim’s first exposure to Martin Logan CLX’s. He had read most of the reviews and talked with a few other people so he had a general idea of what to expect. Jim spent about 2.5 days with me and my system. Outside of phone conversations and a few photos and diagrams Jim was coming into an environment he had no experience with.

Upon arrival Jim focused solely on better understanding my environment. He asked pertinent questions and there was no music played until he understood the room, the components and the reasoning for certain positions and configurations. While I had always considered my room less than ideal, Jim thought it was just fine and not a real issue.

Jim then listened to a few tracks to determine what challenges he might have for the next 2 days. The tracks he selects are ones he knows very well and so he knew what to listen for. Now I was hoping I had them setup pretty good (they sounded damn good to me and anyone else to date I put in front of them) but the look on Jim’s face and body language told me otherwise. Jim’s initial thoughts boiled down to:

– Lack of body
– Lack of tone
– Lack of depth
– Lack of emotion
– Flat sound staging
– Thin presentation
– Lack of sound staging “Wall”
– Overwhelming bass (but controlled)
– Both male and female vocals lacked warmth, texture and realism

While I did not take offense to his comments I was a bit surprised that I was that far off. At the same time I was now excited at the prospects of making it sound better than it already had.

Once we discussed the game plan to “fix” the system then we addressed the bass first.

…………

I am very happy with the process and results of working with Jim. The system sounds great and I learned a ton throughout the process. It is good to know that I have the system sounding its best within its current environment.

I should note that my general preference was for a bit too much bass in my system which was destroying the details and tonality of most music. I can now appreciate a seamless bass and additional details in the music. I cannot even pinpoint where the bass is coming from now.

I should also note that I thought having the speakers further apart was the solution for a wider sound stage, which is not the case. I now get a much wider sound stage by having the speakers closer together. I now have a continuous “Wall” of music across the soundstage.

…………

To read more detail, you should go to the original website. To save time, we suggest starting at Post #190.

Here is the link:

http://www.martinloganowners.com/forum/showthread.php?t=7730&page=13

Contact Jim Smith to schedule or to make any inquiries

________________________

The following is another excerpt. The first part is from the evaluation of the system:

System Evaluation

As I promised in an earlier post, below are the results from Jim Smith’s observations concerning my listening room and setup. Jim really is a class act and all of the critiques he offered were professional and honest. My wife and I enjoyed his visit to our house immensely and felt very comfortable talking with him.

We are confident in his ability to take our system to the next level and to do so without buying anything new. While Jim has a lot of accolades to his name along with a list of references from many professionals in the business, he was very humble and patient with our questions.

I’m sure our setup does not even come close in cost to the systems he normally works with, but he was extremely kind in his compliments and treated my wife and me as if we were millionaires looking to spend a fortune.(Which we are not!)

The intent for his coming out was by design to be an evaluation of approximately 2 hrs.with some discussion of a future time to have him back out if his services were needed. The only negative about this approach was not being able to solve the issues immediately, but rather me having to display some patience on my part and wait for our next meeting.

Jim graciously gave me permission to post some of his critiques of my setup on this forum.

However let me add that there would have been much more work to be done if I had not read his book. It truly is a great value and a valuable reference to getting better sound. Even if I could not afford Jim’s services I would still enjoy a much more musical system due to the advice in his manual. I’m sure others that are more careful in their reading of his book, and follow his tips thoroughly concerning speaker placement, can be confident they will have a much more musical sounding system. So without further ado…..

1. Overall sound too soft, ill defined.

2. A bit muddy – bass “wooly”.

3. No deep fundamentals – no authority in the bass. Piano sounds emasculated.

4. Need to re-evaluate bass performance, based on seating, speaker position, and – to a minor extent – separation.

5. One reason the sound is lacking may be that the bass drivers are in opposite acoustic polarity to the screens. We’ll need to simply reverse it and see.

6. Speakers too close together (BTW – this is very rare – they are usually too far apart).

7. Too many absorptive wall treatments, sound is dead, lacking life.

8. 50-60Hz and down too low in amplitude.

9. Mid-bass peaks around 80-100 Hz.

10. Another peak around 200 Hz.

11. Another peak around 2-2.5 kHz, causing unwanted signature to string sound, and making loud female vocals a bit “shouty”.

12. Extreme top end a bit down. May need to toe in speakers very slightly to restore it.

13. Slight but pervasive “awk” coloration, probably related to the 200 Hz peak.

14. Speaker tilt may need to be addressed.

My biggest concern was with #5. I wonder if others have noticed this issue with your Logan’s. Is this by design from Martin Logan or are both my speakers unique in this regard? Just curious. The next visit with Jim will be in late August, and once we are finished I will post again about the differences he made along with some new photos. This will be a long wait for me, but I know it will be worth the wait.

Glen

The next section is excerpted from the actual voicing process:

Hifi setup

On August 20th Jim paid me a visit and spent nearly 6 hrs. voicing my system to the room. He already had a good idea of what to expect from a previous visit which entailed a brief listening session several weeks prior. There were several areas of concern that he noted in which my setup was deficient. He addressed these areas this past Thursday and provided me with an excellent reference point when listening to music. Anyway on to the good stuff:

First off Jim is highly focused and goal oriented when he is working. He does not stop to eat or drink anything until he is completely satisfied with the sound. I tried my hardest to get him to take even a glass of water, but to no avail, he was relentless in his goal and continued to work straight through to the end! When he first arrived he sat down and listened for a couple of minutes to familiarize himself with his previous visit and compared this to his notes.

OBSERVATIONS

Upon Jim’s exit I sat down and listened to multiple cd’s and quickly realized the changes that were made were much more pronounced than I had first thought. The improvement in the bass was absolutely huge. Never did I imagine that the Vantages’ were capable of such deep bass with well-defined definition.

I am not saying that the bass was louder, but there were now lower registers being played in the music that I had never noticed before. This added a new dimension to the music that was sorely missing. Jim had mentioned on his previous visit that there were notes missing and this contributed to the instruments sounding emasculated. I did not disagree with him, but since I had no reference I was not entirely sure what he meant by this at that time. Now I know!!! It’s amazing that when the bass is right how much this adds to ones listening pleasure.

As for the soundstage, I wish I had the vocabulary to describe the difference. There is just a certain rightness to it that you can’t help but wonder at how two speakers can do this. Of course I know there are many others out there that have even more magic in their systems than I do, but just to experience this in music you know backwards and forwards is extremely satisfying. The Vantages really do just get out of the way and play music.

Musical detail has increased along with a much livelier presentation. My theory is that because I had the panels leaning too far forward then this attributed to some of the details being lost or masked. I was probably realistically listening to only the top 1/3 of the panel and this was squashing some of the nuances that are so important to the music. Why I had decided on that rake a few months ago is beyond me, but it definitely opened back up when Jim used his method.

I could not be more satisfied with hiring Jim and his many years of experience. The enjoyment that I have gotten just these past few days has been more than worth the effort and cost. I don’t know if I will try to get that last 1% or not, but the difference he has made already makes me a satisfied customer!!!!

Glen

To read more detail, and there is a lot of it, you should go to the original website. To save time, we suggest starting at Post #79 and go to at least Post #97.

Here is the link, beginning at Post #79:

http://67.19.167.226/~tdacquis/forum/showthread.php?t=4868&page=6

Here is an example of unsolicited correspondence that Jim has received, this time from Glen – the poster above:

Jim, I can’t tell you how much more involving my system is now.  (My wife) listened to one of her favorite records last night and she was astonished with the changes.  She even sent a text message explaining to me how she now feels more part of the music.  Thanks again and keep up the good work.

And another:

Hey Jim,

I wanted to follow up with you since it’s been about three months when you last visited to voice my system.  This morning, like many other mornings, I was enjoying some vinyl and thought to myself that what you did was the best investment I had made for my Hi-Fi ever.  Thank you again for your help and providing me with many wonderful listening sessions.

Contact Jim Smith to schedule or to make any inquiries

________________________

Below is a report on another voicing session:

My Experience with System Voicing by Jim Smith of Get Better Sound

I won’t dwell on the mechanics and logistics of the experience, since those are well documented elsewhere, both online in various forums and on Jim’s own site. And the overall structure stays pretty consistent, as I understand it, even though each situation is unique and may call for changes in one way or another.

I think it is fair to assume that the “general” structure involves Jim arriving the day or evening before the primary working day in order to spend some time getting familiar with the existing setup—first impressions of how it sounds and lots of questions about what the client’s goals and priorities are with the system and why choices were made to arrive at the current equipment and configuration and layout in the room (audio preferences, financial restrictions, “bargain” purchases, etc.). In other words, to what extent is the current configuration the result of a conscious, strategic series of selective purchases and articulated audio (or aesthetic or practical) decisions, as opposed to a discrete set of haphazard or fairly random purchases over a period of time.

The goal of the initial discussion is not to pass judgment or encourage changes in equipment—Jim just wants to understand the client’s goals and how the current setup seems to reflect those audio objectives.

One of Jim’s great strengths as an independent consultant is that he is NOT pushing equipment changes or additional purchases on the client. The task he sets for himself is to understand the audio priorities of the client and then, within the scope of the current equipment and practical considerations of room (size, acoustical environment, etc.) and aesthetics (e.g. SAF), voice the system to best effect.

The second fairly unique characteristic and strength of Jim’s approach lies in his own superb ability to listen to known recordings, know what they should sound like, and then translate that knowledge into practical suggestions regarding setup. While that sounds fairly straight forward, I know from experience that it is FAR from as easy as it sounds. Otherwise we could all attend a few stereo shows, listen to a few great-sounding rooms listening to our own favorite test tracks, and return home knowing what it should sound like and tweak till we achieved that sound. Wish it were so.

Part of Jim’s magic lies no doubt in his year’s of experience as a recording engineer, dealer, and audiophile, of course. Developing a core set of source materials with which one is intimately familiar is part of the experience; knowing what it actually should sound like is a step beyond just being “familiar,” and I think that’s where Jim surpasses many others in the field.

So I’d say that’s the first big step in system voicing—getting the lay of the land, as it were, using KNOWN source materials—much of which might be accomplished on the day or evening before the hands-on day of active voicing.

Of course it is an iterative process, but knowing what one is hearing and what one should be hearing is the essential prerequisite to everything else. Having the extensive experience with a wide variety of equipment and environments and configurations is a prerequisite to the next step: deciding where to begin making changes in layout or positioning or environment or any one of many other factors (in my case, we spent much of our time on adjusting crossover parameters on my tri-amped, multi-speaker configuration).

There’s an efficiency of approach that’s really critical and usually undervalued, I believe, to making improvements in a reasonably logical, systematic, and therefore productive manner—as opposed to the more usual process of making individual changes, often seemingly random, over long periods of time, as I suspect most of us do on our own, with no time constraints.

I actually think there’s a qualitative benefit to systematically tackling the overall voicing process in a compressed time period. Try this, move that, listen, evaluate. Get this right first—or at least moving in the right direction—so that a) we confirm that we’re thinking correctly about cause and effect and b) we’ve corrected enough in one area to begin judging a dependent area meaningfully. Adjust the upper bass spike so we can *hear* the lower mid-range and know what it’s doing right or wrong. This is a system voicing PROCESS.

Never fear, I’m confident that it won’t replace the inevitable long-term tweaking and equipment changes to which we’re all willing slaves. I consider it a substantially different process, to be honest.

So the process is not just iterative but iterative with a plan, a strategy, and a known (to Jim, at least, since it’s his source material being used) result—so you know when you get there! Perhaps more than any other single feature, this is what separates Jim’s approach from the pretenders: he goes in with a game plan, determines a baseline (current sound) and a goal (what it should sound like, referenced to a client’s priorities), and then systematically works through an iterative process to get there in as efficient a manner as possible.

In my case, we spent maybe 4 or 5 hours in preliminary work (without changing anything) the evening before, and then another 5 or so hours actually voicing the following day. Your mileage may vary—I know Jim has spent longer and I suspect shorter time on other systems. But I also suspect that my experience was fairly typical.

It easily represented the best “bang for the buck” that I’ve spent on my system over the years. That’s as glowing an endorsement as I could make and I make it willingly.

Jerry P., Wimington, DE, Dec. 5, 2009

Read More

خبری نیست که نیست …

پنجشنبه ۱۹ اسفند ۱۳۸۹
/ / /
Comments Closed

گفتم در جریان باشید که از های فای خبری نیست که نیست …

آلبوم سر عشق استاد شجریان رو گوش بدید ، میگه :

به هوش بودم از اول که دل به کس نسپارم که دل به کس نسپارم …

شمایل تو بدیدم نه عقل ماند و نه هوشم …

مرا به هیچ بدادی و من هنوز برآنم               که از وجود تو موئی به عالمی نفروشم

حکایتی زدهانت به گوش جان آمد           دگر نصیحت مردم حکایت است بگوشم

این روزها هوا حس و حال بهار رو با خودش داره و سال 89 هم در چشم به هم زدنی گذشت ، باور میکنید یا نه 100 سال دیگه از من و شما خبری تو این دنیا نیست ، من که خوشم تو لحظه زندگی میکنم و نه در بند فردام و نه در افسوس گذشته، در همین لحظه خوشم.

من عمیقا اعتقاد دارم زندگی هدیه ای بی نهایت ارزشمنده که حتی باید تو هر شرایطی قدر لحظه لحظه هاشو دونست.

امروز ترا دسترس فردا نیست                     و اندیشه فردات بجز سودا نیست
ضایع مکن این دم ار دلت شیدا نیست         کاین باقی عمر را بها پیدا نیست

راستی به مناسبت شب عید سیب هارو حراج کردم ، زود دیر میشه عجله کنید…

Read More

Audio Note UK in Iran

پنجشنبه ۱۲ اسفند ۱۳۸۹
/ / /

من خیلی امیدوارم برند Audio Note بتونه تو ایران جایگاه واقعی خودش رو پیدا کنه.

این برند برای موفقیت در بازار ایران و جلب رضایت علاقه مندانی که حتی خیلی متمایل به لامپ نیستند فقط نیاز به دموی درست داره.

من معتقدم چه اونایی که صدای لامپ رو دوست دارند و چه اونایی که ترانزیستور رو ترجیح میدهند حتی با وجود ASR و Vitus اگر Audio Note رو تو شرایط درست بشنوند کاملا نظرشون در مورد آئودیونت تغییر کنه.

اولین مساله اینه که طراحی Audio Note کاملا مبتنی بر طراحی مینیمال و پاسخ میکرو هست و نمیتونیم برند دیگری رو در ایران پیدا کنیم که تا این حد مبتنی بر پاسخ میکرو باشه ، بنابراین آئودیونت رو نمیشه با چیز دیگری تو ایران Match کرد ، مثلا نمیتونیم بریم آمپ آئودیونت رو به Pre برندی مثل Krell یا Audio Research بزنیم . بنابراین نماینده آئودیونت باید بدونه این برند رو باید ست کاملش رو بیاره و آئودیو نت فقط با کامپوننت های خودش دمو بشه. مطمئن باشید اگر تو سیستم مبتنی بر برندهای دیگه اگر یک کامپوننت از آئودیونت در این Setup قرار بگیره صدای خروجی خوب نخواهد بود و آئودیو نت رو فقط باید با سیستم خودش Match کرد.

صدا گرفتن از آنالوگ با توجه به کلی تیون و ریزه کاری هایی که داره هم باید مورد توجه باشه و برای صدای آنالوگ هم وضعیت خیلی حالت Plug & Play نداره.

سورس دیجیتال تو قسمت Transport باید یا خود آئودیونت باشه یا ترنسپورتی که مثل CEC یا 47Labs آپ سمپلینگ نداشته باشه.

DAC سیستم حتما و حتما باید خود آئودیونت باشه و نه هیچ برند دیگری.

Pre و Power هم حتما حتما باید خود آئودیونت باشه.

کابل ها هم باید از خود آئودیونت باشند.

در مورد بلندگو هم بلندگوی خود آئودیونت پیشنهاد میشه و هم برندهای دیگری که حساسیت بالای 94 دی بی و امپدانس بالای 8 اهم دارند. آرتور سالواتوره یک لیستی تهیه کرده که جالبه :

http://www.high-endaudio.com/RECENT.html#Nov

AcuHorn rosso superiore 175
Affirm (formerly Maxxhorn) Lumination & Immersion
Apogee Acoustics Definitive Ribbon Speaker (very expensive)
Aspara Acoustics HL1 Horn Speaker
Audio Note ANE SEC Signature
Avantgarde Duo and Trio
BD-Design Oris and Orphean Models
Bottlehead Straight 8s (Discontinued)
Brentworth Sound Lab
Coincident (Total) Victory II (and most of their other models)
Decware (Various Models)
(DIY Hi-Fi Supply) Crescendo Ribbon Horn Speaker System
Fab Audio Model 1 (Toronto, Canada)
FAL Supreme-C90 EXW or EXII
Goodmans of England 5 or 612s
Horning Hybrids (Various models)
Klipschorn and La Scala
Living Voice OBX-R2 (UK)
Prometheus II
RL Acoustique Lamhorn 1.8 (Montreal, Canada)
Sonist Concerto 2
Sunlight Engineering 308
Supravox Open Baffle
Teresonic (Various Models)
Tonian Acoustics (Various Models)
WLM (Various Models)
Zingali Horns
Zu Defintion

اگر به این لیست خوب نگاه کنید میبینید آرتور فقط بر مبنای مچینگ امپدانسی و حساسیت بلندگو این لیست رو گذاشته ، من قبلا هم گفتم غیر از اینکه امپدانس و حساسیت بلندگو باید ok باشه جنس صداش هم باید مبتنی بر پاسخ میکرو باشه مثل بلندگوی ESP .

از بین برندهای بلندگوسازی که آرتور لیست کرده باید دید کدوم بلندگو تو میکرو پاسخ مناسب تری داره تا با آئودیونت پاسخ خوبی بده.

اگر ما درست صدا رو بفهمیم میتونیم بلندگوی مناسب آئودیونت رو انتخاب کنیم البته اگر فعلا کمی مشکله میشه از بلندگوی خود آئودیونت هم استفاده کرد و مطمئنا پاسخ بسیار خوب خواهد بود .

من معتقدم تو ایران همه تلاشها برای قانع کردن مخاطب برای رفتن به سمت لامپ بی نتیجه است اگر اول خودمون درست نفهمیم چگونه باید از پتانسیل لامپ استفاده کرد .

من کسی رو میشناسم که بعد از مدتها مطالعه (در مورد لامپ ها) و تست و حتی ساخت یک آمپلی فایر لامپی اومده به سمت خرید ASR و از نگاه من دلیل این موضوع این نیست که ASR یا ویتوس از آئودیونت بهترند ، من معتقدم آئودیونت از ویتوس و ASR تو میکرو پاسخ بهتری داره اما اگر تو شرایط درستی دمو بشه.

آئودیو نت اگر با شرایطی که نوشتم دمو بشه و اگر دمو کننده شرایط برق رو با کابل های برق مناسب و با AC Regenerator مناسب بهتر کنه مطمئنا مطمئنا همه کسانی که همین حالا ویتوس و ASR دارند نظرشون کاملا در مورد آئودیونت عوض خواهد شد.

امیدوارم نماینده این برند بتونه حق Audio Note رو ادا کنه و مخاطبان ای که پاسخ میکرو و صدای حسی رو دوست دارند بتونند به سیستم مورد علاقه شون دسترسی پیدا کنند.

فراموش نکنیم آئودیونت از نگاه من تنها صدایی بود که از بین آمپلی فایرهای لامپی پاسخ میکرو خوبی داشت و اصلا ملاک صدای خوب لامپی بودن نیست همونطور که هزاران هزار آمپلی فایر لامپی بد صدا تو بازار هست.

آخر هفته خوش بگذره

Read More

میوه چیدن عمو اکبر

یکشنبه ۸ اسفند ۱۳۸۹
/ / /

همین الان چه بارونی میاد ، دوباره عاشق شدم …

چند روزی بود سایت دیده نمیشد و مثل ماه پیش بخاطر بازدید بیشتر و لود شدن عکسهای زیاد قبل از اتمام ماه میلادی پهنای باند تموم شده بود.

این مشکل رو با تغییر و ارتقاء سرور حل کردم تا دیگه از این مشکل ها پیش نیاد فقط اگر کسی ایمیلی برام فرستاد و جوابی دریافت نکرد لازمه دوباره ارسال کنه.

این ارتقاء سرور برام هزینه زیادی داشت و هیچ سود مادی هم از این سایت عایدم نمیشه ، کار ما شده میوه چیدن عمو اکبر.

داستان عمو اکبر و میوه چیدنش اینه که یه آقایی تو شهر ما شهمیرزاد به اسم عمو اکبر یک باغ سیب داشت و موقع جمع آوری محصول اونقدر به فامیل و آشنا میگفت که بیان برای کمک و آخر کار کل پول فروش سیب هاش مساوی میشد با دستمزد اونهمه کارگری که آورده بود .

حالا داستان ما یه چیزی اون ور تر از عمو اکبر شده و همش باید هزینه کنیم اما نه هیچ سود مادی برامون داره و تازه کم هم تا حالا حرف نشنیدیم.

به هر حال میوه چیدن ما تو های فای ادامه داره 😉

Read More

عصر جمعه با شما

جمعه ۶ اسفند ۱۳۸۹
/ / /
Comments Closed

خبری نیست ، گفتم بعد از ظهر جمعه که آدم حوصله اش سر میره کمی اینترنت بازی کنم و چیزی هم بنویسم.

اول اینکه من خیلی خوشحال میشم از Audio Note UK که الان آقای کاشانی نماینده اون هستند تو ایران استقبال بشه و اگر نماینده جدید این برند بتونند با آوردن بلندگوهای مناسب بالای 94 دی بی یک صدای خوب از این Audio Note در بیارند فکر میکنم خیلی بازار خوبی رو در پیش رو داشته باشه. Audio Note فقط و فقط نیازمند بلندگوی مناسب هست تا حتی بهتر از ویتوس و ASR صدا بده.

دوم اینکه به ذهنم رسید تو بخش معرفی سورس دیجیتال برندهای نزدیک هر انتخابم رو معرفی کنم:

Audio Note UK  -> Zanden Audio & 47Labs

Playback Design -> EMM Labs & Wadia

Weiss Medea -> Esoteric & APL NWO

تو لیست بالا تو کلاس صدای Audio Note دو برند Zanden و 47Labs سورس ها و DAC های خوبی میسازند و تو کلاس صدای Play Back Design دو برند EMM Labs و Wadia صدایی نزدیک دارند و تو صداهای کاملا Real در کنار Weiss برند Esoteric و APL صدای نزدیک دارند.

این هفته با مهندس صدای مارتن رو شنیدیم و مهندس اعتقادشون اینه بلندگو باید Transparent باشه مثل مارتن و خارما و بلندگوهای ریبونی و بلندگو باید صدایی Open داشته باشه. Open بودن صدا نیاز به چند درایوری بودن و تقسیم فرکانسی بین درایورها داره و Transparent بودن هم تا حد زیادی به سرعت پاسخ دهی درایور و دیستورشن اون درایور وابسته هست.

چیزی که بنظر من خیلی مهم هست جدا ندیدن بلندگو از آمپلی فایر هست ، اگر اشتباه نکنم (من حافظه ام خوب نیست) آرتور هم اینطور عقیده داشت که باید بلندگو و آمپلی فایر رو جدا از هم ندید و اونها رو در کنار هم دید، یعنی مهمتر از انتخاب یک بلندگوی خوب و یک آمپلی فایر خوب باید به Matching این دو توجه کرد. خیلی کم طراحانی هستند که روی این موضوع متمرکز شدند و من فقط تو سایت Audio Pax قبلا یه چیزهایی خوندم و فکر میکنم موضوع سازگاری این دو کامپوننت خیلی موضوع مهم و درخور توجه ای هست. ما تو ایران به این دلیل تو درآوردن صدای برندی مثل Audio Note موفق نبودیم که بلندگوهایی رو به اونها زدیم که مناسب اونها نبودند.

یکی از بلندگوهایی که توجه منو اخیرا جلب کرده بلندگوی Venture هست که فکر کنم توسط یک هنگ کنگی بنام didi تو اروپا ساخته میشه ، ببینید :

http://www.venture-audio.com/

اینم پست جدید رومی :

http://www.goodsoundclub.com/Forums/ShowPost.aspx?postID=15644#15644

High-End Audio vs. High-End understanding.

I know that in audio we use fucked-up terminology that over the course of years audio propaganda pimps of all calibers impended into minds of feeble audio people. High-End Audio in today world means nothing that what I feel, is it possible to clear up the definition of High-End Audio? Let see commonly understood by High-End Audio. Wikipedia might not be a reference source but it does reflect well the common understanding:
http://en.wikipedia.org/wiki/High-end_audio
If to clear up the BS that Wikipedia written then the sensible
“High-End Audio is a term used to describe a class of consumer home audio equipment marketed to audio enthusiasts ….solely on the basis of sound quality”
I do not think that I misquoted Wikipedia text; I just dropped the less relevant wording. Esoteric, advanced or novel sound reproduction technologies to punch the envelope of sound quality? Sounds about right. There is a twist in this definition. In my view High-End Audio is not a collection of techniques and methods but a collection of understandings.
Let embrace the “equipment solely on the basis of sound quality” definition and look at an example.  Let pretend that you have a very good setup with a lot of advance equipment that does fine sound. Somebody come to you and point out some specific problems of your sound. Let pretend that you paid attention, worked on the problems and fixed it. I think it is plausible scenario, would it be? Now less see what in this scenario was High-End Audio:
A) Your based on sound quality equipment
B) Your guest’s and eventually your understanding of what sound need to be
Obviously the answer would be “B” as “High-endness” of your equipment did not changed by only the application of your equipment changed.  Now, pretend that you have a very good and advanced listening techniques and know “how sound need to be” and “what is good for sound” but you have no “esoteric, advanced or novel sound reproduction technologies”, instead your awareness extrapolates the demanded sound quality from a preverbal “table radio” , are you participant of High-End Audio? I would say very much so.
So, challenge that what people out there understand as High-End Audio in fact just a meaningless term as meaningful as 0 degree in Fahrenheit scale. Can I offer my own definition of High-End Audio? Sure I can.
High-End Audio is a set of a person’s realizations how different sound reproduction techniques affect own interpretation of musicality and sound reproduction results. The High-End Audio expertise is to be waked up at 3AM, be given a let say TT with absolutely unknown characteristics of tonearm, cartridge and anything else and be asked to get from all of it Proper  Default Sound with using nothing else then just own hearing.  Interesting that in this  3AM example the final result you get is not as important as the direction you go for your  attempt to setup this TT.
So, High-End Audio is just an amorphous set of own comprehension, not wonder that the stupid audio industry never was able to sell it and to convert it to a tradable commodity.
Rgs, Romy the Cat

Read More

My High End Audio System

سه شنبه ۳ اسفند ۱۳۸۹
/ / /

یکی ایمیل زد و سوالی در مورد این سیستم سونی های اند من پرسید :

جناب اکبری سلام
وقتتون به خیر
درباره  پست آخر شما که درباره اون ضبط سونی بود
میشه بفرمایین که چطور اون سیستم صدای بهتری از یک سیستم  دیجیتال امروزی  دارد؟
یک بخش قضیه که بر میگرده به تجربه شنیداری برای من پذیرفتنی بود با توجه به مسائلی نظیر آکوستیک بودن محیط شنیدن صدا  و همینطور نوشته هایی که در پست های پیشین نوشته بودین ولی این بخشش که خروجی سیستم های امروزی بدتر از خروجی اون  ضبط سونی  هست برام مبهم هست
که چطور امکان داره اینجور باشه
ممنون خواهم شد توضیحی بفرمایین
البته فروم باز نشد که اونجا کامنت ها  و احیانا نظر شما را پای مطلب بخونم
از توی  گوگل ریدر مطلب رو خوندم
با سپاس

خب من فکر میکنم صدای سیستم صوتی های اند من یعنی سونی تقریبا بهترین صدایی هست که تا امروز شنیدم. دلیل این موضوع این نیست که من از این صدا خاطره دارم یا از این جور تفسیرها ، به شما میگم صدایی که از این سونی میاد بیرون بهترین صدایی هست که تابحال شنیدم. اولا دقت کنید این سونی صداش مثل پرتابل های ارزانی که اینروزها سونی و سامسونگ و پاناسونیک میسازند نیست، این سونی سال 1368 خریداری شده و هم ساخت ژاپن هست و هم کیفیت هد اش بینهایت عالیه، بعد از بیست سال هد این ضبط کیفیتش رو خیلی خوب حفظ کرده و کلا کیفیت ساخت این سونی اصلا قابل مقایسه با محصولات الان تو بازار نیست.

بلندگوی این سونی حالت تک درایوری داره و توییتر هم تو همون محور میدرنج قرار داره (مثل Tannoy) و این موضوع باعث شده ما صدایی یکپارچه تر از 3way ها تو اتاق های معمول داشته باشیم. ولتاژ منبع تغذیه اون 9 ولت هست (یعنی توان خروجی قاعدتا کمتر از 10.1 وات باشه) و صدای درایورهاش حالتی Emotional داره مثل بلندگوهای حسی با درایورهای کاغذی مثل ESP .

بلندگوی این سونی پهنای باند فرکانسی زیادی نداره و نه High خیلی گسترش یافته ای داریم و نه باس گسترش یافته اما نکته مهم اینه که تو این ناحیه میانی ما فوق العاده صدای داینامیک و حسی رو از این بلندگو میشنویم خصوصا Weight و میکرو داینامیک اش که عالیه. حسن این درایورها اینه که با توانی کمتر از 10 وات صدای نسبتا بلندی رو بدون کلیپ سیگنال میده و این نشون میده حساسیت این درایورها بالاست و صدای خروجی هم یکپارچه هست و هم حسی و دوست داشتنی.

نکته مهم دیگه اینه که این سونی نوار کاست رو خیلی عالی پخش میکنه که این خودش بزرگترین حسن هست ، من نوارهایی از استاد شجریان دارم که خیلی سالها پیش با کیفیت بسیار عالی روی بهترین های اون موقع مثل TDK و Sony و Denon ضبط شدند و این آنالوگ بودن رکورد و پخشش با کیفیت عالی این سونی یکی از بهترین تجربه ها رو با صدا برای شنونده رقم میزنه.

خب سورس که شده آنالوگ (نوار Tape) و کیفیت نوارهام که آنالوگ رکورد شدند عالیه (چون اون موقع تو استودیوها همه چیز آنالوگ و خوب بود و مثل الان نبود که استودیوها دیجیتال شده و مهندسان صدا کارشون شده شاشیدن به صدا) و کل سیگنال از هد دستگاه تا بلندگو کمتر از 2 طبقه مدار ترانزیستوری هست که مجموعا فاصله هد تا بلندگو 20 سانتی متر هم نمیشه. این همه سادگی و کوتاهی مسیر سیگنال همونجوری که طراح 47 Labs و بقیه مینی مالیست ها از جمله آرتور سالواتوره معتقدند نتیجه اش میشه صدایی که بهترین پاسخ رو تو میکرو داره.

اما چرا صنعت صدا موفق نبود و صدای این سونی من بهتر از اون چند صد هزار دلاری ها مثل Goldmund ست؟

چون صنعت صدا تو همه بخشها به سمت پیچیده تر کردن و از بین بردن پاسخ میکرو رفت، آنالوگ شد دیجیتال و این تبدیل به همراه پردازشهای دیجیتال کلی از اطلاعات میکرو رو که لطافت و ظرافت موسیقی رو با خودش داشت از بین برد.

آمپلی فایرها هر روز بخاطر توان بیشتر تعداد طبقاتشون بیشتر میشد و فیدبک منفی هم بیشتر  و کلا ساختار پیچیده تر شد، کابل ها بلند تر و پیچیده تر شدند با فیلترهایی که سر راهشون گذاشته شد.

بلندگو ها هم گرچه گسترش فرکانسی شون بیشتر شد اما اون هم به لطف پیچیدگی بیشتر و از بین بردن میکرو صدا ممکن شد، فقط پاسخ فرکانسی دامنه Flat تر شد اما تو بقیه چیزها خرابکاری رخ داد.

همه و همه دست به دست هم داد تا من بگم “خاک بر سر صنعت صدا” که یکی 400 میلیون هم پول Goldmund سوئیسی بده نمیتونه صدای سونی من رو بشنوه.

خوش بگذره

Read More

عید مبارک

سه شنبه ۳ اسفند ۱۳۸۹
/ / /
Comments Closed

دیروز به اینترنت دسترسی نداشتم که عید رو تبریک بگم.

مارتن تا این لحظه خیلی خوب به دل علاقه مندان نشسته ، قبلا هم به آقای رحمانی گفتم تا میشه بقیه بلندگوها رو بفروشند چون با اومدن مارتن و بعدش هم ESP فروش بقیه برندها سخت میشه همونجوری که با اومدن ویتوس و ASR فروش برندهای دیگه تو کلاس قیمتی این دو برند سخت شد.

من یک توصیه به شنوندگان مارتن دارم اونم اینکه برای قضاوت درست در مورد یک صدا باید خودشون اون صدا رو بشنوند و بدون هیچ پیش زمینه ای از حرف های فروشندگان، مجلات و … در مورد مارتن اول ببینند حس شنیداری خودشون چی میگه.

متاسفانه یکی از عوامل ایجاد اشکال اینه که ما بجای تکیه بر حس شنیداری خودمون ذهنمون رو تابع حرف های دیگران کنیم (اکثر اوقات دیگران بیشتر از کمک به ما باعث سرگردانی ما میشوند). اگر کسی نمیتونه با گوش خودش تشخیص بده من حتی بهش پیشنهاد هم نمیکنم که بره مارتن رو بشنوه اما اگر کسی به گوش خودش اعتماد داره باید بدونه تنها ملاک درست قضاوت همون حس شنیداری خودش هست و نه حرف ها و نظرات کسانی که بخاطر منافعشون دوست دارند مخالفت کنند.

قبلا توضیح دادم ما دو شاخص ماکرو و میکرو داریم ، مارتن ماکرو خوبی داره و بلندگوی ESP میکرو خوبی ، وقتی ماکرو صدا خوبه یعنی صدا خیلی شفاف و کریستالی هست و صدا حالتی زنده و Real داره و ما برای اینکه با این نوع بلندگو صدایی بالانس بگیریم باید Upstream ای رو باهاش Match کنیم که اطلاعات میکرو رو مثل Texture ، Micro Dynamic رو حذف نکرده باشه و بهترین حالت اینه با مارتن ما به سمت سورس آنالوگ و آمپلی فایر هایی مثل آئودیو نت و ویتوس بریم.

تو انتخاب سورس دیجیتال هم بهتره سراغ اون سورس های حسی مثل آئودیونت بریم.

اگر مارتن رو با جورما و ویتوس و یک سورس آنالوگ (یا سورس دیجیتال Emotional ) خوب جمع کنید هم تو ماکرو صدای خوبی دارید و هم تو میکرو پاسخ قابل قبولی دارید و میتونید در درازمدت هم از موسیقی لذت ببرید و هم اون حالت صدا براتون جذاب باشه.

حالا اگر ما بلندگویی انتخاب کنیم که تو میکرو پاسخ خوبی داشته باشه مثل ESP در نهایت ما میتونیم تو میکرو از ست مارتن ویتوس صدای بهتری تو میکرو بگیریم اما تو ماکرو طبیعتا از مارتن جورما عقب میمونیم اما من نگاهم اینه تو هر دو حالت صدا اونقدر جذاب هست که بشه هم در دراز مدت به موسیقی گوش کرد و هم از شنیدن چنین صدایی لذت برد.

پس یادتون باشه مارتن نیاز به Matching درست داره تا بتونه شنونده رو در دراز مدت راضی نگه داره و من ویتوس و جورما رو پیشنهاد میدم با یک سورس آنالوگ خوب . حالا اگر کسی بیاد به مارتن آمپ بد پر توان ترانزیستوری یا لامپی بزنه و کابل ها رو اشتباه انتخاب کنه و سورس رو هم سورسی آنالیتیکال انتخاب کنه ، طبیعتا صدا حالتی خشک و در درازمدت آزاردهنده پیدا میکنه و وضعیت خراب میشه همونجوری که صدای منگر قبل از اومدن ASR جذابیت خیلی کمتری داشت به نسبت زمانی که ASR اومد.

من دنبال ESP هم هستم و پروژه بعدی اینه آقای رحمانی رو راضی کنیم ESP بیاره تا شنوندگانی که صدای Emotional رو بیشتر دوست دارند (مثل صدای میدرنج آلگزاندریا) به سمت خرید ESP بروند اما چیزی که مهمه اینه که با مارتن و ویتوس و جورما و SME میتونید صدایی بشنوید که بی اندازه (تکرار میکنم بی اندازه) جذاب و باحال هست و از نگاه من این صدا آخر صدای Real تو شاخص ماکرو هست.

نکته دیگری که باید در مورد مارتن سوئدی بگم اینه این بلندگو از درایورهایی تو میدرنج و توییتر استفاده کرده که برندهای دیگه ای که از همین میدرنج و توییتر استفاده کردند قیمت هاشون حداقل دو برابر قیمت مارتن هست. شک نکنید مارتن (همونجوری که قبلا هم گفتم) حداقل دو برابر قیمتش در مقایسه با دیگر برندهایی که صدایی Real دارند می ارزه. مثلا سوپریم فقط قیمت میدرنجش 12500 دلار هست و هیچ بلندگوی دیگری تو دنیا حتی با دو برابر قیمت سوپریم هم از چنین درایوری استفاده نکرده.

آخر حرفم اینه حتی به تعریف های من هم اصلا توجه نکنید و خودتون صدا رو بشنوید ، هیچ چیزی جز حس شنیداری شما نباید ملاک قضاوت قرار بگیره و من تمام سعی ام اینه برندهایی بیاد تو ایران که علاقه مندان صدای خوبی بتونند بشنوند اما معتقدم خود شما باید انتخاب کننده باشید و نه بر مبنای پیشنهاد من خرید کنید و نه بر مبنای موافقت یا مخالفت بقیه. اگر کسی سوالی در مورد این برند داره میتونه از من بپرسه و من براش توضیح میدم که چرا مارتن آخر صدای Real هست و هیچ بلندگوی دیگری تو ایران تو شاخص صدای Real مثل Quad و منگر و بلندگوهای ریبونی … نمیتونه با این بلندگو رقابت کنه.

یه نکته دیگه ای که یادم اومد اینه که من بیشتر Coltrane و Supreme رو پیشنهاد میکنم و خیلی روی Momento تاکیدی ندارم و اگر کسی خواست بیشتر از Coltrane هزینه کنه من پیشنهادم اینه به سمت Supreme بره و نه Momento.

مطمئن هستم مارتن و ESP تقریبا جای همه بلندگوها رو تو کلاس قیمتی خودشون تو ایران خواهند گرفت ، شک ندارم…

خوش باشید

Read More

آلبوم On Every Street by Mark Knopfler and Dire Straits

شنبه ۳۰ بهمن ۱۳۸۹
/ / /
Comments Closed

این آلبوم رو با مارتن و ویتوس شنیدم و پیشنهاد میکنم اونو بشنوید ، خیلی جذابه :

On Every Street was released on 10 September 1991, over 6 years after the band’s previous album, Brothers in Arms, and was Dire Straits’ sixth and final studio album. It was released to mixed reviews and was not as popular or as successful as its predecessor, though it still sold more than 8 million copies worldwide (six million in Europe and one million in the United States). It reached number 12 in the United States and number one in the United Kingdom. The album was produced by Mark Knopfler and Dire Straits.

By this time, the band comprised Knopfler, John Illsley, Alan Clark and Guy Fletcher, and the album features session musicians including Paul Franklin, Phil Palmer, Danny Cummings and American drummer Jeff Porcaro from Toto.

Dire Straits promoted the album with a gruelling world tour which lasted until the end of 1992. The group disbanded in 1995, after which Mark Knopfler pursued a solo career and released his debut album Golden Heart in 1996 (not counting previously released soundtracks), and has released many solo records since.

This album was remastered and released with the rest of the Dire Straits catalogue in 1996 for most of the world outside the United States and on September 19, 2000 in the United States.

http://en.wikipedia.org/wiki/On_Every_Street

http://www.cduniverse.com/search/xx/music/pid/1102459/a/On+Every+Street.htm

http://www.amazon.com/Every-Street-Dire-Straits/dp/B00004Y6NV

Read More

Marten Coltrane Needs Jorma Cables

شنبه ۳۰ بهمن ۱۳۸۹
/ / /
Comments Closed

هر پیشنهادی برای جمع کردن یک سیستم صوتی از روی یک دیدگاه خاص هست که نمیشه اون پیشنهاد رو بخشی اش رو اجرا کنیم و بخشی اش رو به سلیقه خودمون اجرا نکنیم.

من برای بار 100 ام تکرار میکنم بلندگوی مارتن نیاز به کابل جورما داره ، هم کابل برق جورما و هم کابل بلندگو و هم اینترکانکت جورما ، اگر کسی این قسمت رو حذف کنه و بجاش بره از یک کابل دیگه استفاده کنه عملا کار خراب میشه. وضوح مارتن طوری هست که به راحتی صدای Upstream خودش رو مونیتور میکنه و نیاز به یک کابل بسیار خوب داره. نکته دیگه اینکه مارتن بخاطر سریع بودن پاسخ دهی درایور هاش نیاز داره با کابل و آمپ و سورسی Match بشه که از لحاظ هارمونیکی Rich تر باشند و هر کابلی نمیتونه پاسخ مناسبی با مارتن داشته باشه.

هیچکدوم از کابل هایی که آقای رحمانی و بقیه وارد کنندگان تو ایران وارد میکنند مناسب برای بلندگوی مارتن نیستند و اینو باید از ذهنتون بیرون کنید که بدون جورما بتونید از مارتن اون 100 درصد کاراییش رو بگیرید.

بدون جورما و با کابل های تو ایران شما فقط از 60 درصد کارایی مارتن سود میبرید ، به هر حال انتخاب با شماست که با کابل های تو ایران صدایی نسبتا Lean و Bright رو گوش کنید و یا با استفاده از جورما یک صدای Sweet و فوق العاده رو با مارتن تجربه کنید. اگر یادتون باشه خارما هم خیلی به کابل حساس بود و کلا Quad و منگر و بلندگوهای مبتنی بر درایور های سریع آکوتان نیاز به کابل و Upstream خوب دارند. همونجوری که قبلا ASR اومد و من بارها نوشتم منگر نمیتونه همه پتانسیل ASR رو مشخص کنه و باید Tidal جایگزین منگر بشه الانم میگم کسانی که ASR و Vitus دارند زمانی میتونند بهترین صدا رو بشنوند که از بلندگوی مارتن همراه با کابلهای جورما استفاده کنند. جمع کردن ASR با بلندگویی غیر از مارتن و کابلی غیر از جورما و نیز جمع کردن Vitus و مارتن بدون کابل جورما چیزی نیست که مورد پیشنهاد من باشه.

انتخاب با خودتونه اما مطمئن باشید اون نتیجه ای که باید رو نمیگیرید ….

مایکل فرمر اینطور نوشته :

http://www.stereophile.com/floorloudspeakers/205marten/

The Coltrane is the company’s “statement” product, and at $50,000/pair, you expect more than a short riff improvised on a familiar theme. Olofsson went for top-of-the-line German Accuton drivers (known as Thiel and Partners elsewhere in the world, but not in the US because of Thiel Audio), including a custom version of Accuton’s ultra-expensive, ¾”, diamond-diaphragm inverted-dome tweeter, similar to the one used in Avalon’s Eidolon Diamond loudspeaker.

How expensive is “ultra-expensive”? For the diamond-tweeter option, Avalon adds $10,000 to the price of the standard Eidolon. Making the synthetic-diamond diaphragm requires a great deal of heat and pressure and a heap of engineering expertise. It’s not easy to do, but the resulting stiffness, low mass, and ability to channel heat yield many measured benefits, not least of which is the raising of the tweeter’s resonant frequency to well above the audioband.

As this review was being prepared, B&W announced its own diamond tweeter. Press-conference attendees were shown some impressive measurements demonstrating that, while the resonant frequency of B&W’s previous best metal-dome tweeter was also out of the audible bandwidth, the rise to the inevitable peak began within it. With diamond offering a much higher-frequency dome resonance than metal, the new tweeter’s response appeared to be remarkably flat to well beyond 20kHz; I trust Accuton’s will show similarly good behavior. For around $10,000 at retail, it had better!

The Coltrane’s midrange driver is a 4″ concave ceramic cone made by Accuton to Mårten’s specifications. Generating the bottom octaves are two off-the-shelf 9″ ceramic cones, also by Accuton.

Adding to the Coltrane’s expense is its enclosure, made of carbon fiber and honeycombed Kevlar laminate by a Swedish company that supplies composite structures to the aeronautical and marine industries, and whose owner is an audiophile. A one-piece mold containing two carbon-fiber shells sandwiching a 1″-thick insert of honeycombed Kevlar is baked at 300º in a vacuum oven to produce a curvaceous, lightweight, ultrarigid enclosure weighing about 22 lbs—Mårten goes for stiff and light as opposed to dense and damped. Internal bracing and a downward-firing 4″ port are also incorporated into the molding process. The speaker’s integrated structure allows the front baffle—made of viscoelastic, constrained-layer-damped, 2″-thick hardwood and MDF—to be bolted securely to the enclosure in three places. The midrange driver is housed in a subenclosure attached to the front baffle but isolated from the composite structure, which is heavily damped with an asphalt-like material.

Given the enclosure’s relatively low mass, I asked Leif Mårten Olofsson about its resonant frequency, which I suspected was in the midband. He confirmed that it was around 1kHz, but added that this was easily damped out by the Coltrane’s extremely narrow Q factor. I’m as curious as you are to see what John Atkinson’s accelerometer measurements show.

Crossover points at 300Hz and 4kHz ensure that fundamental frequencies generated by musical instruments and voices fall comfortably within the midrange driver’s passband and away from the driver transition points. The crossover itself features point-to-point wiring, its components secured using a vibration-reducing viscoelastic adhesive. The crossover is inside the speaker, behind the port and close to the two sets of WBT binding posts, to which it is connected using internal cables by Jorma Design, also of Sweden. Mårten recommends biwiring the Coltranes with Jorma cables.

A pair of heavy, polished steel crossbraces fitted with Black Diamond Racing cones support the enclosure and, with the addition of four Black Diamond Racing pucks, provide sufficient clearance for the port’s optimal performance.

In short, there’s nothing mysterious going on here: just ultra-high-quality drivers and careful attention paid to enclosure construction, with an emphasis on rigidity and vibration control, plus computer-aided crossover design and execution. Like any other modern speaker designer who relies on computer programs such as DRA Labs’ MLSSA, Olofsson’s ears remain the final arbiters. The designer claims that the Coltrane’s frequency response is 20Hz–100kHz, –3dB, with the port tuned to 23Hz, though the specs on the Mårten Design website claim ±2dB with the port tuned to 19Hz.

Coltrane Time
Despite its price and its promise of ultrahigh performance, the Coltrane is surprisingly compact—not much bigger than my reference Wilson Audio WATT/Puppy 7s—and lacks sex appeal when compared with, say, the stunning-looking Sonus Faber Stradivari Homage. But then, most speakers lose out in that comparison. With its grooved wooden front baffle (available in maple, cherry, oak, or walnut), the Coltrane has an appealingly Scandinavian look. Still, after first reminding me of a sauna door, the baffle’s shape then brought a surfboard to mind. Many observers see a resemblance to the Kharma speaker line. Between the carbon-colored enclosure, the grooved baffle, the black-and-white ceramic drivers, and the aluminum cross braces, the Coltrane sends a mixed visual message that some visitors to my listening room found attractive and others didn’t.

The Coltranes fit comfortably in my room, where I first placed them on the masking-tape outlines of the WATT/Puppy 7s’ positions—not far from the masking-tape outlines used for the just-departed Sonus Faber Stradivaris and Krell Resolution 1s (reviewed in, respectively, the January 2005 and November 2004 issues of Stereophile). Initially, I toed-in the Mårtens so that their tweeter axes crossed just behind my listening position. A multiposition switch next to the speaker terminals allows ±2dB of adjustability, in 0.5dB increments, in the usual “room bump” (or dip) region of 40–80Hz.

So positioned, the Coltranes were a sonic slap in the face compared to the easy-fit, Dockers-like performance of the Stradivari or the Krell Resolution 1. If those speakers were about delivering big, velvety pictures or—to make an automotive analogy—soft, luxurious, shock-absorbing rides, the Coltranes were more forward and about detail, powers of ultra-resolution, and the exhilarating, tightly sprung, road-hugging, steering-wheel-communicating handling of a European sports car.

The Coltranes drew a tighter, more compact picture than either the Sonus Fabers or the Krells, but one with astonishingly sharp focus and weighty image solidity. While those two speakers sounded slightly warm and tended to cushion images in velvet, the Coltrane tended to carve away adjacent space, leaving images free to float in dramatic three-dimensional relief. The Coltrane’s musical grip was firm and well-controlled from the midband up, and while it didn’t sound etchy or bright, the presentation was revealing of every flaw that preceded it in the recording and reproducing chains. If there was tape hiss, the Coltrane let me know about it. That was fine with me, but the lack of midbass weight wasn’t. It produced somewhat skeletal pictures of heads without bodies, orchestras sans venues.

Giant Steps
As originally set up, the Coltrane presented a lightweight picture exacerbated by the tweeter’s near-infinite high-frequency extension. Getting the speaker to sound good was relatively easy, but getting it to sing for its $50,000 supper was another matter. That’s not meant as criticism—any ultra-hi-rez, high-performance speaker will demand an equal amount of attention paid to precise placement and careful choice of associated gear.

Getting the Coltranes in proper tonal and spatial balance required a combination of tiny changes in the speakers’ distances from the front and side walls, as well as tweaking their 40–80Hz switch positions. Toe-in was also critical in balancing the tweeters’ contribution to the overall picture. While getting the bass locked in lessened the diamond tweeter’s overbearing personality, I had to toe the speakers out more than usual (the tweeter axes now crossed farther behind my listening position) to both open the soundstage dimensions and create a smooth, sweet, but still wide-open high-frequency presentation.

One final change was necessary to lock in the Coltrane’s sound: using Mårten’s cable of choice, the Jorma Design #1. I’ve used Harmonic Technology’s combination of Magic Woofer and Tweeter cables for all of my recent speaker reviews, and have found their performance to be basically “out of the way”; the Harmonic Techs properly expressed the relative warmth and opulence of both the Krell Resolution 1 and the Sonus Faber Stradivari.

Yet when I’d optimized the Coltranes to the best of my abilities, I still found the sound a bit bright and spotlit on top, slightly lean on bottom. The issue wasn’t one of “personality”—every speaker’s got one—but of balance. A speaker shouldn’t impose an imprint on every piece of music it reproduces, or at least it shouldn’t be noticeable over time.

Because both Olofsson and his US distributor, Sound Advice, pushed the Jorma Design cables on me and I’d refused the offer—wanna see a room’s worth of cables?—I felt I owed it to them to at least try their recommendation, which anyway is what the speakers are wired with internally. The biwired pair of WBT spade lugs protruding from the Jorma Design #1’s cylindrical termination housing are marked Highs and Lows; I don’t know if some kind of filtering is taking place, but with the Jormas in place, the Coltranes, which had already sounded impressive if somewhat brittle on top and lacking body below, cohered as they hadn’t before. The top end, still ultra-extended and detailed, was now transparent and silky-smooth, the midbass more pronounced and fleshed-out, the bass fuller and more tactile. Given the Harmonic Tech cables’ outstanding performance in all of the aforementioned parameters, their lack of synergy with the Coltranes remains a puzzle.

Read More

My High End Audio System

جمعه ۲۹ بهمن ۱۳۸۹
/ / /

تعجب نکنید و فکر نکنید دارم شوخی میکنم ، سیستم صوتی بالا رو سال 1368 به قیمت 8300 تومن برام خریدند و باور میکنید یا نه این ضبط که فقط یک جا برای نوار داره موسیقی رو 100 برابر بهتر از سیستم صوتی 10 میلیونیم پخش میکنه.

این ضبط ساده بنظر کمتر از 10 وات توان داره و احتمالا دو طبقه مدار ترانزیستوری داخلش هست. فقط ولوم داره و یک تن کنترل ساده همین. روبروی این سیستم ساده یک کتابخونه نسبتا بزرگ هست که خیلی خوب کار دیفیوز رو انجام میده و مجموعا صدا تو اتاق و حتی تو سالن بی نظیره .

شما ممکنه باور نکنید اما این سیستم فوق العاده ساده و ارزان صداش میتونه از سیستم های چند صد هزار دلاری هم خیلی خیلی بهتر باشه .

تعجب نکنید ، صنعت های فای با ورود به دنیای دیجیتال اونم به شکلی اشتباه ، استفاده از فیدبک منفی و رفتن به سمت توان های بالا و پیچیده کردن و طولانی کردن مسیر سیگنال و استفاده از پردازشهای دیجیتال تو استودیو و … فقط وضعیت رو خراب کرد. از لحظه صدابرداری پیچیدگی شروع میشه ، سیگنال از 100 تا فیلتر دیجیتال رد میشه ، دینامیک 100 برابر کامپرس میشه ، جیتر بهش اضافه میشه ، بعد که اومد روی سی دی 16 بیت مشکل جیتر رو با خودش یدک میکشه ، ترنسپورت با خطا میخونه ، میره تو DAC اونجا هم کلی با فیلتر های دیجیتال سیگنال بالا پایین میشه ، بعد از عبور از یک متر کابل (که بقول مهندس باید یک باغ بزرگ رو بفروشیم بتونیم یک متر اینتر کانکت خوب بخریم) میره تو پری بعد اونجا مجبوره از چند طبقه عبور کنه و بعد دوباره از یک متر کابل میگذره و میرسه به پاور و اونجا هم 8 طبقه مدار رو با فیدبک منفی رد میکنه که (بعد از سه متر کابل بلندگو) برسه به کراس اور پیچیده بلندگو و …

تقریبا هر چی اطلاعات تو میکرو صدا هست از بین میره و میشه یک صدای بد که بیشتر جاها از جمله تو خونه خودتون میشنوید …

من صدای ووکال شجریان رو با این ضبط ساده حتی بهتر از سیستم های چند صد هزار دلاری تو ایران شنیدم و اگر میبینید هر چقدر پول میدید خیلی اون نتیجه دلخواه رو نمیگیرید یک بخشش بخاطر اینه که تو صنعت صدا از پایه خیلی چیزا ویران شده که من و شما نمیتونیم درستش کنیم.

خاک بر سر صنعت صدا کنن.

من که دارم با این سیستم حال میکنم و همین برام کافیه 😉

Read More