Vienna Acoustics Music

3db

3db

Audioholic Slumlord
A-B'ing a pair of speakers is the true evaluation of a pair of speakers, IMHO. Specs are not needed at all to accomplish this. The point I was making is that specs are a good way to sort out speakers before investing the effort to audition them.
If specifications are not available, but a speaker is well liked by many, I am willing to audition it.
Looks like we agree on this!! :eek: ;) My previous post did mention that using specs is a convenient way of eliminating a large list of potential cadidates.
 
haraldo

haraldo

Audioholic Warlord
For all the DIY'ers.... there are some interesting designs around here:
http://www.audiocomponents.nl/speakers/scanspeak/reference/scanspeak-reference_eng.htm

All using Scan Speak drivers, also some of the same or similar drivers as to what's used in Mahler (reference plus), nothing that can relate to the Bethooven line.....

Would be interesting to get a viewpoint how they would cope compared to some of the speakers discussed here
thinking about: Reference Plus, Vertigo, Vertigo Plus
 
Patrick Butler

Patrick Butler

Junior Audioholic
That is evidence we have really dumbed down the public?

So in effect you are saying we a wasting our time educating forum members!

At least publish an impedance curve. Just about everybody here understands that. Phase angles would be nice. Why? Well we get asked again and again, "Will this receiver x drive these speakers y?" We can't answer because the manufacturers are an obtuse cynical bunch and refuse to publish vital information about their product.

And I tell you what, most understand a waterfall plot, and unless you lie through your teeth then it is hard to fake. And yes, a waterfall plot tells you an awful lot about a speaker. I know damn well most manufacturers don't want you to see it.

It was not always that way. I came from the "Golden age" of British Audio.

The likes of Peter Walker, Gilbert Briggs, Raymond Cooke, Jim Rogers and Donald Chave to name but a few would get you by the scruff of the neck for your remarks.

All of the above were only too keen to spread the knowledge and teach. They did not keep secrets from each other let alone the buying public! They took the time to mentor me even as very young boy, for which I'm, eternally grateful.

Speaker manufacturers back then made their drivers available to the pubic. They published construction plans for speakers, some their production models, some not. Gilbert Briggs published classic books for the home constructor, and even tapped competitors to contribute sections. KEF published excellent constructor series publications. Donald Chave of Lowther also published detailed horn plans. In those days it was expected that the instruction manual contained a circuit diagram with all relevant voltages.

Your comments about the fact you would expect manufacturers to lie, speaks to the general lack of probity at all levels of business in our current age. This has a lot, and actually even everything, to do with the morass in which we find ourselves.

I actually regard your last two posts as shameful and speaking to an awful lot that is wrong with the world right now.
Dear TLS Guy,

Spreading knowledge is indeed a good in and of itself. The majority of my colleagues in the industry tend to avoid chat rooms because of the nasty behavior from a small number of people. I'm personally comfortable with the crazies and think it worth the time to share my experience. Whether or not the public has been dumbed down as you seem to indicate is beyond my knowledge and falls into the realm of pure speculation.

My own experience is that people are interested in what is important to them, and most people who buy loudspeakers are not interested in knowing how they work and to quote a previous post by Paradise "what percentage of them know or really care about a waterfall plot?" Whether or not my industry gets down to the bottom of what is important to customers determines in part how successful our businesses are.

I'll reiterate my previous statement and you can feel free to construe it to mean whatever you like. Publishing measurements is not relevant to selling loudspeakers. Those measurements are often available through magazines like Stereophile, and you can find measurements on our products there. John Atkinson will often state when measuring a design that drops below 4 ohms in the bass that you need an amplifier with good current delivery. That statement applies to all of our products for best performance, and many modern loudspeakers at all prices. Which amplifier you like is a matter of personal tastes, expectations and budget.

Let's recall that you are the one saying that I expect manufacturers to lie, not me. Those are your words. Regarding your observation that there is a general lack of probity in business these days, I categorically reject that statement. These days are no different from those days. There are always cheats, liars and hucksters. I see that they are a small number compared to the honest and hardworking people that I meet everyday running their businesses.

If I may pass along a piece of advice, if you focus on crap that is all you are going to see. Doesn't mean that you have to be a Pollyanna, but you do get what you look for. By the way, I love the photographs attached to your link. If they are yours, it looks like you have built a pretty rich life for yourself. Kudos!

Cheers,

Patrick
 
Patrick Butler

Patrick Butler

Junior Audioholic
It is if you're trying to sell them to me. :)


Then I'm sure you will find what you are looking for and I'll continue to be successful. How about that for a win-win scenario?

Best,

Patrick
 
KEW

KEW

Audioholic Overlord
...I would rather rely on an impartial and professional party to publish measurements on products- such as Stereophile- than manufacturers own measurements. After all, I would never ask a woman how much she weighed and expect an honest answer.
Patrick,

Based on you analogy above, I would have to agree with TLS Guy's inference that you do not believe it prudent to trust manufacturers to provide an honest answer (which I agree with).

As to the matter of overall truth and honesty. There have always been hucksters and cheats. However, I have to say that in the US (and probably elsewhere) the effect of WW 2 was to unify the nation and create a "we're all in this together" atmosphere, which has gradually eroded as time has passed. In today's world, there is more formalized deception in marketing and business and where companies used to have a model of "making a fair profit", today's more typical mantra is "maximize profit".
In the big picture, I think the post WW2 era was an anomaly in it's "more civil" attitude.
 
Patrick Butler

Patrick Butler

Junior Audioholic
Patrick,

Based on you analogy above, I would have to agree with TLS Guy's inference that you do not believe it prudent to trust manufacturers to provide an honest answer (which I agree with).

As to the matter of overall truth and honesty. There have always been hucksters and cheats. However, I have to say that in the US (and probably elsewhere) the effect of WW 2 was to unify the nation and create a "we're all in this together" atmosphere, which has gradually eroded as time has passed. In today's world, there is more formalized deception in marketing and business and where companies used to have a model of "making a fair profit", today's more typical mantra is "maximize profit".
In the big picture, I think the post WW2 era was an anomaly in it's "more civil" attitude.
Let's just say that I am a fan of Reagan's line "trust, but verify." For me that is best left to independent 3rd parties like Stereophile. At least with Stereophile there is a consistency with how things are measured so you know what the base line is. With manufacturers you often do not know who they arrived at their measurements. I also like John Atkinson's long term goal of trying to explain why reviewers hear what they hear with measurements.

Companies had a mantra during, before and after WWII of maximizing profits. Some did it at all costs, and some had standards that ameliorated the worst aspects of Capitalism. Hell, the entire labor struggle that began in the mid-1800s was based on the notion that workers were being abused by greedy capitalists and that people deserved basic decency that eventually led to the 5 day work week, children going to school, health insurance and better wages. The great thing about today is that we have the internet and consumers can hold businesses more accountable through chat rooms, ratings and social media. Hopefully I am helping mine and adding the value that they deserve.
 
Alex2507

Alex2507

Audioholic Slumlord
I'm not at all familiar with VA but obviously some here in this thread are so maybe they can link some Stereophile reviews and measurements so we can all see what is going on with their speakers. Shame on you guys for not doing the leg work for me. I'm very busy (read lazy) and don't have the time (can't stop looking at porn) to do my own research. :rolleyes:
 
Swerd

Swerd

Audioholic Warlord
I'm not at all familiar with VA but obviously some here in this thread are so maybe they can link some Stereophile reviews and measurements so we can all see what is going on with their speakers. Shame on you guys for not doing the leg work for me. I'm very busy (read lazy) and don't have the time (can't stop looking at porn) to do my own research. :rolleyes:
Looking at too much porn causes brain cancer :eek:

Vienna Acoustics Beethoven Concert Grand - May 2006

Vienna Acoustics Klimt the Kiss - Feb 2010

Vienna Acoustics Mahler - April 2000

Vienna Acoustics Mozart - January 1997
 
fightinkraut

fightinkraut

Full Audioholic
Just wanted to say it's refreshing to see an intelligent discussion between a forum member I greatly respect and a manufacturer's rep. I enjoy seeing someone representing a company staying calm and presenting themselves in an articulate manner. I may disagree with what's said, but I'm all for encouraging useful discussions.

Thanks!
 
B

Boerd

Full Audioholic
I find a very comical irony that these scientific "Accuracy" guys are on here perpetuating misconceptions based on a very brief peak into a port; which of course is irresponsible and inaccurate.

Funny how guys who are so concerned about truth and accuracy in Loudspeakers/loudspeaker design, have so little concern about the accuracy and truth of their statements of a specific brand of loudspeakers.

Funny how that works.

Seems like a scientific accuracy guy would know full well that dampening material needs to be placed in specific spots. usually determined by ...you know....measurements.
Point taken. Speaking about measurements - according to various web sites (including stereophile) the frequency response of the Beethovens have a 15db interval (+/- 7.5 db) - that is far from flat. I do understand flat frequency in itself doesn't mean much but +/- 7.5 is a bit much... Then there is cabinet resonance at around 600 Hz - measured by Stereophile which rarely criticizes anything.
Look - I owned a pair and they sounded great with two exceptions:
1. They distort at reasonably loud level (they will not "rock")
2. There was some vibration that to me was audible. My wife has classical music training (piano + violin) and she pointed to me the piano doesn't sound right. Now I moved from one apartment to another and then I bought a house (big mistake :)) the vibration was still there - which tells me it was not the room. Right now I have a room that is decent - this is the room where I made up my mind and sell the VA and move on to NHT.
 
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B

Boerd

Full Audioholic
Hi Kurt,

Good questions. It's not that it is or isn't bad to publish measurement data, it's just that it is not relevant to selling loudspeakers. Wilson publishes nothing and neither does Magico or Sonus faber, while Paradigm does and Rockport Technologies does not. Depending on how you want to promote yourself, some companies spend quite a bit of time talking about their technology, others consider it a means to an end.

Their are many periodicals that have published extensive measurements on our products and they are available online. While I do not always agree with their measurement techniques and the way that products actually are used and perform in-room, they are nevertheless available. Suffice to say that you don't stay in business for 20 years, earn a patent for a driver design and grow 42% worldwide unless you know what you are doing.

I've enjoyed our dialog. Thank you.

Best wishes,

Patrick
Patrick,

Bose is a successful company; so is AudioQuest (the cable guys). They both own patents; that means nothing these days. Vienna Acoustics of course is a (much) better company but I am just trying to make the point for measurements. To me it shows how much confidence you have in your products. Making claims without explicit measurements doesn't mean much. Vienna Acoustics sells expensive speakers so one should be able to see why that is - better drivers, better cabinetry, etc and here are the measurements to show/prove "IT IS BETTER" ... My 2c
 
TLS Guy

TLS Guy

Audioholic Jedi
Point taken. Speaking about measurements - according to various web sites (including stereophile) the frequency response of the Beethovens have a 15db interval (+/- 7.5 db) - that is far from flat. I do understand flat frequency in itself doesn't mean much but +/- 7.5 is a bit much... Then there is cabinet resonance at around 600 Hz - measured by Stereophile which rarely criticizes anything.
Look - I owned a pair and they sounded great with two exceptions:
1. They distort at reasonably loud level (they will not "rock")
2. There was some vibration that to me was audible. My wife has classical music training (piano + violin) and she pointed to me the piano doesn't sound right. Now I moved from one apartment to another and then I bought a house (big mistake :)) the vibration was still there - which tells me it was not the room. Right now I have a room that is decent - this is the room where I made up my mind and sell the VA and move on to NHT.
What do you mean, "A flat frequency response does not mean much?" A flat mid band response is the most consistent factor leading to positive response in blinded listening panel tests.
 
B

Boerd

Full Audioholic
What do you mean, "A flat frequency response does not mean much?" A flat mid band response is the most consistent factor leading to positive response in blinded listening panel tests.
Dang it - if I say it means much - people say I am unidimensional and care about only one measurement. If I say is not that important ... :)
Oh my - tough crowd here.
I was trying to make a point - 15 db interval for frequency response is not that great for a 4500$ speaker.
 
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TLS Guy

TLS Guy

Audioholic Jedi
Dang it - if I say it means much - people say I am unidimensional and care about only one measurement. If I say is not that important ... :)
Oh my - tough crowd here.
I was trying to make a point - 15 db interval for frequency response is not that great for a 4500$ speaker.
Tough life isn't it?

Yes we agree, but I would call it a bad speaker at below the $100 mark.

This thread really highlights what has really gone wrong with the audio industry starting in the mid sixties. I guess not just the audio industry either.

The point is that an ethical speaker company with pretensions to to being in the high end realm has absolutely no justification for marketing a speaker like that at any price. It is a pure waste of natural resources. I certainly won't be steering any recommendations in their direction.
 
zieglj01

zieglj01

Audioholic Spartan
2. There was some vibration that to me was audible. My wife has classical music training (piano + violin) and she pointed to me the piano doesn't sound right. Now I moved from one apartment to another and then I bought a house (big mistake :)) the vibration was still there - which tells me it was not the room. Right now I have a room that is decent - this is the room where I made up my mind and sell the VA and move on to NHT.
A good musician can be your friend, when auditioning speakers.
 
Patrick Butler

Patrick Butler

Junior Audioholic
Tough life isn't it?

Yes we agree, but I would call it a bad speaker at below the $100 mark.

This thread really highlights what has really gone wrong with the audio industry starting in the mid sixties. I guess not just the audio industry either.

The point is that an ethical speaker company with pretensions to to being in the high end realm has absolutely no justification for marketing a speaker like that at any price. It is a pure waste of natural resources. I certainly won't be steering any recommendations in their direction.
I'm guessing from your remarks that you haven't actually bothered to read the review or look at the measurements.

I'll quote from John Atkinson's 1999 article in Stereophile on the topic of measuring loudspeakers, which can be found on their website"

"Overall conclusions
While each measurement of a specific area of loudspeaker performance gives important information regarding possible sound behavior, it emerges that there is no direct mapping between any specific area of measured performance and any specific subjective attribute. As a result:

• Any sound quality attribute always depends on more than one measurement.

• No one measurement tells the whole story about a speaker's sound quality.

• Measuring the performance of a loudspeaker involves subjective choices.

• All measurements tell lies.

• Most important, while measurements can tell you how a loudspeaker sounds, they can't tell you how good it is. If you carefully look at a complete set of measurements, you can actually work out a reasonably accurate prediction of how a loudspeaker will sound. However, the measured performance will not tell you if it's a good speaker or a great speaker, or if it's a good speaker or a rather boring-sounding speaker. To assess quality, the educated ear is still the only reliable judge.

And no matter how good any one measurement, if the beginning of the third movement of Beethoven's Fifth Symphony, where the composer introduces the trombones for the first time, or Jimi Hendrix's hammered-on tremolo at the start of "Voodoo Chile" on Electric Ladyland, doesn't send shivers down your spine, the loudspeaker is still doing something, somewhere, wrong."

All in all, an interesting read that points out the complexities involved in measuring loudspeakers, and how that correlates to how people listen. When you start to read many reviews you come to find that some times what people experience and the measurements say are not the same thing. Beyond the psychology of listening, this might be because the ear/brain is measuring a different thing than the mike.

Going back to the Beethoven Concert Grand for a moment and taking a look at the in-room response, there is no +-7 db variation in response. The graph makes that clear. Further, that's in-room response and not anechoic. To quote John in a review of the Legacy Audio Whisper:

"It is important to note that a flat response is not the goal in in-room responses such as these. The spectral analysis is not only affected by the loudspeaker's on-axis frequency response, but also by its power response and how that interacts with the room's reverberant field"

In short, the in-room response that he measures is not the complete picture of what is really going on. That is a far more complex topic, and it is part of the reason why measurements are pretty worthless to most people. The true picture is quite complicated, what the mike "hears" is dependent on where it is put which might not actually reflect what the listener hears. Where the mike is placed and how measurements are taken reflect a subjective choice. In the case of the Beethoven, he states that "Sitting low might produce a better tonal balance than sitting on the 40"-high tweeter axis." The average listening height according to one study quoted in Stereophile is 34" So, if you take a speaker designed to sum at that listening height and then measure is at the tweeter, are you really measuring what the listener is hearing? The answer is no.

The Beethovens as measured by John have top, side wall resonance of 600hz. Michael Fremer makes no comment regarding "boxy colorations" at any point in his review. In fact, he mentions that "the refined yet detailed-sounding Beethoven completely aced this test of midbass clarity and freedom from midbass coloration." This was with Johnny Hartman, and surely he would have have noticed a coloration with either Johnny or the piano recording that he listened to where he found "Recordings of solo piano demonstrated that the Beethoven was capable of handling that most difficult instrument without muting or softening it" and "The Beethovens produced an impressively large acoustic—not in the same league as the Wilson Audio Specialties MAXX2s, but big enough to suggest a large space—and reproduced the piano's transients and the hall's reflective character with sufficient speed and detail to make this a compelling listening experience." Hmm. No coloration to be found. I also have a two friends who play piano professionally and own Beethoven. Neither has commented on a "boxy coloration." Might be the typical 80-110 hz mode found in most rooms speaking if you are hearing a coloration in two different rooms.

Michael does make one comment regarding playback level restrictions of the speaker "I didn't expect the Beethoven to be able to express the Wilson's dynamic range, and it wasn't, but neither was it noticeably limited macrodynamically—at least until I cranked it up to high SPLs. That's when I discovered the speaker's most serious limitation: It didn't like to be pushed hard or played extremely loud. When it was, its pleasingly smooth tonal demeanor turned a bit hard and occasionally downright nasty, and dynamic compression set in. The good news is that I'm talking about playback levels that will approach the excessive in rooms of small to medium size—SPLs you'll hear at a live rock concert but are unlikely to experience in a concert hall or jazz club. In other words, the Beethoven Concert Grand shouldn't be cranked way up in a big room." This in comparison to a loudspeaker 10 times the prices.

"When I turned the volume down to less than ear-splitting levels for the Tommy lacquers, I found the Beethoven more than capable of rocking, with very good bass extension and weight on the nimble-fingered John Entwistle's bass parts and a nice thwack to Keith Moon's tom-toms and kick drum."

Perhaps now might be a good time to revisit that conversation about measurements, their value and whether or not some people bother to read them or know how to interpret them.

Best,

Patrick
(the long-winded poster)
 
TLS Guy

TLS Guy

Audioholic Jedi
I did read the review, but you told us people don't want to understand measurement, so I went straight to the bottom line. However since you ask?

First off the listening evaluator is one of the arch priests of the audiophools. He has promoted more over priced dubious products over the years than you can shake a stick at. One of the main reasons I stopped subscribing to Stereophile years ago when he spouted misleading information about CD technology. He did not even have an elementary grasp of the technical issues.

Now to the measurements. First the impedance curve.



The impedance curve shows a drop below 3 ohms at 90 Hz. The angle between current and voltage is not stated, but the load to the amplifier is going to be at least 30% less than measured given a crossover second order at 160 Hz. So that speaker will stress all but the most robust and powerful amplifiers.

Then we come to phase, there is a huge phase swing between 2 and 4 kHz.



This is coupled with severe frequency response aberrations in the mid band. This indicates cancellation between mid and tweeter, with serious unresolved crossover design problems. This is further indicated by a huge peak of impedance at that crossover. That crossover is just plain badly designed and not acceptable in a speaker of any price.

In regard to phase, the woofers are wired out of phase to the rest of the drivers. While this is of no great matter when used as a stereo pair, it will preclude using this speakers in a multi Channel HT environment. That is a situation that a responsible speaker manufacturer should strive to avoid at this time.

The next issue is the placing of a passive second order filters at 160 Hz. That is just a bad plan. I have been over this numerous times. But the huge inductors and caps involved just cause huge problems for the amplifier. The high inductor values upset the Q of the driver and the whole thing is downhill from then on. If you want a crossover in that region, then the speaker needs to be active period. The situation is made worse by the fact that iron cored chokes and electrolytic caps are used compounding the felony.

The spectral delay plot is indicative of cabinet resonances not addressed. Fair enough for a cheap speaker, but not one at this price.

I have already alluded to the disastrous mid band response, but the bass response comes in for special criticism also.

There is a 5 db peak centered on 70 Hz, then the bass rolls off fourth order. If the peak were not there, then the f3 would be close to 60 Hz and not around 35 Hz. The functional F3 really is around 60 Hz. However you disguised it with the shameful old trick of a peak just below 100 Hz. Michael Fremer obviously fell for it. To the uninitiated a response like that sounds like 'lots 'a bass". To the well trained ear its awful and in my view one of the biggest sins of commission a speaker can commit.

The strongest suit of this speaker is its off axis response.



All of the serious deficiencies above lead to a damning waterfall plot, as you would expect, with major disconuities



Now a speaker with the above attributes has zero chance of producing a reasonable facsimile of a piano. It is an absolute physical impossibility. So the classical trained pianists observations are entirely validated by the evidence.

I can well understand why you are railing so hard about publishing measurements, but these measurements did not lie to the classically trained pianist.

Now this really does highlight the damage the audiophools have wrought on audio development. Time and effort wasted on nonsense. The ascendancy of anecdotal subjective bilge reigning supreme and unfettered.

Peter Walker spotted this years ago and spoke up loud and clear against it. He gave accurate warnings about what was to come to pass. Vienna acoustics is a prime example of what he was warning about.

Peter's voice is now silenced, but his designs and numerous contributions speak for themselves. Those of us who knew him are required to carry on the fight against the superstitions that have done so much to limit the true progress that could have been made.

So Patrick, you can continue to post all you want, but the data shows you are defending a highly compromised design and prompting it as a design serious music lovers should aspire to own, when in fact they should run fast in the other direction.
 
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