Quote:
Originally posted by Randybes
Dr. Bose was telling me the same thing the other day, but he went on to say that Jim and Richard could not hold a candle to his PHD knowledge of Physics and they were just glorified cabinet makers with no real knowledge of speaker building (tongue firmly planted in cheek).  |
Really ? I'm sorry, but technically speaking Bose has never and likely will
never produce a speaker than can come even remotely close to the
performance offered by either of the speakers I mentioned. The technical
engineering in both the Vandys and Thiel's is a stratosphere above the
Bose line. Have you ever seen the impulse response of a Bose ?
You can listen and like them; you can listen and NOT like them. HOWEVER,
Thiels and Vandersteens are 2 of the most accurate speakers available in
the world at ANY price. The Thiels also happen to be beautiful.
Quote:
Originally posted by Bigus
Thiel and Vandersteen use first order crossovers and geometrically displaced drivers to achieve "time and phase alignment." Whether true phase alignment (0 degree, not 360 degree) is audible is still open for debate. Despite Thiel's claim, such a crossover design is hardly "complex."
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uh-huh....first of all the jury is NOT out. Research conducted at the
University of Waterloo indicated that a trained ear can detect a phase
anomality of as little as 15 degrees. The jury is only out if you listen to
what those that cannot build a phase coherent speaker SAY....but then you are just being a victim of their marketing speak...
A proper first order crossover is also, in practice, the most complex
crossover there is to properly design. It is not a first order electrical slope,
but rather a first order electro-mechanical slope, meaning a crossover must
be integrated with the drivers response curve and smooth out any
frequency, phase, and impeadance irregularities. It is not uncommon to
find 75 elements in the crossovers of higher model Thiel speakers...this is
in STARK contrast to the..ahem...2 element crossovers I've seen in
OTHER "name brand" speakers that have been mentioned in this forum...
Quote:
To label them "technically some of the best speakers in the world" is quite another thing, as now you have left the realm of subjectivity and bring objective performance into play. On those grounds, I'll just say that Thiel's perform good in some objective categories and not so good in others. |
Ahhh...and not so well in WHICH other areas ?
The fact is, if I feed my speakers a SQUARE WAVE I expect them to produce
it-- not some all screwed up waveform, that doesn't even REMOTELY
resemble what went in....
Most speakers can't even get THAT right......the Thiels and Vandy's do...
Quote:
Originally posted by Tom Klemans
You're entitled to your opinion, but you could express it without coming across as arrogant and high-minded. Obviously, you haven't taken any time to research the "cabinet maker's" experience and knowledge in the field before jumping to your hasty, uninformed conclusions. |
Sorry if my earlier post came out as arrogant. It wasn't meant to be...
Actually Tom, I was speaking from a position of experience: About 10 years
ago I bought out a cabinet making company. Subsequently I bought out
one of our customers -a small loudspeaker company being run by a
University of Waterloo Physics researcher, and drew on the natural
synergies and my business ability to make money. As someone who also
holds a degree in Chemical-physics, I was able to understand
TECHNICALLY all too well at least a portion of what it takes to make a good
speaker....and it ISN"T simple...
Jim:
No disrespect was intended towards your products. Certainly, interested consumers should take the time to audition and make a decision.
However, in reading your response I will make a few brief points:
"The speakers you mention are fine, but hardly the basis for my
comparisons". Well Jim, the fact is the Thiel CS7 and Vandersteen Model 5b
are widely regarded as 2 of the best loudspeakers available in the world at
ANY price. There are many speakers out there in the silly money region -
$50,000+ that can't even remotely hold a candle to them. I mean, it's great
to look at a wall of 30 vertically aligned EMIT tweeters, but how does it sound? Um..."no comment"...
-Thiel and Vandersteen hardly use "mid-fi" drivers, and you should be scolded for trying to elude that they do:
Both Thiel and Vandersteen utilize drivers designed by a company in
Denmark called "Scan-Speak". Through their corporate umbrella they are
related through co-ownership to a company called Vidbaek Hojtaeller
Fabrik-- which owns and produces the VIFA line of drivers. They also own a
Norwegian manufacturing company called SEAS. Scan-speak is widely
acknowledged to be the most advanced driver design/manufacturing shop
in the world. Have you ever toured Vifa's facilities ? I have. One word:
WOW. They are widely known to also have by far the most advanced driver
production facility and quality control systems in the world. If you ever get
the offer to tour their facilities, TAKE IT -- they don't offer it to many...
The difference between a Thiel or Vandersteen that are building TENS OF
THOUSANDS OF PAIRS OF SPEAKERS A YEAR and a smaller builder are the
economies of scale that result. A builder in this market can build the SAME
product that a smaller "craftsman" makes for a fraction of the cost. This
leaves room for all the other margins you mention, so your argument
relating to costs and putting more money into the drivers in your speakers
IS pointless. "marketing hype", I believe someone here called it....
In reading your comments about YOUR speakers, and how they are
designed, I can begin to form some opinions and make some observations:
-cross over design is NOT the most important factor. The design of the
ENTIRE speaker IS. This involves interactions between the drivers and
cabinets, as well as between the drivers themselves. A properly designed
crossover is designed IN CONJUNCTION WITH the rest of the speaker, NOT
as a separate item.
This, plus the fact that you talk about selecting the drivers for use in your
speakers YOURSELF and that "Dennis Murphy" designed the crossover (in
at least one of your models) gives me a picture of quite a fragmented
design process...which normally results in a product that performs
accordingly.
-the mention of him having a "well trained ear" also sends shivers up my
spine, as an audio afficondo. The worlds BEST speakers have been
designed PURELY in laboratories for quite some time. LISTENING to the
speakers is what the engineers do AFTER 5PM. You can get very good time-
domain measurement system from Audio Precision or Sclumberger for
under $15,000USD these days, so the price is even within range of small
manufacturers. There is plenty of research out there on correlating
measurements to ACTUAL listening evaluations. A top notch audio engineer
(read: physicist), although far from cheap, can understand and utilize this
correlation to design a speaker that performs well.
-In general terms, using someone's background of working in a recording
studio as good preparation for this type of "job" can also be misleading:
Indeed one of the MAJOR problems in the audio world today is that sound
engineers, and those involved in the 'mastering' process, just can't even
understand the need for a set of STANDARDS to be used in their "studios".
This may very well be a function of their being more from the "arts" side of
the equation, as opposed to those with a technical background.
Not only does EVERY studio out there use different electronics & speakers
to listen on, but there is no standard for placement or listening position.
THIS is becoming a VERY real problem with 5.1 and other multi-channel
sound formats. Ever watch a DVD and think "man- this multi-channel mix
SUCKS". Well, how can you expect complex multi-channel mixing to sound
good on your system if the studio didn't even listen to the recording on a
system that -for starters- has the flippin speakers in the correct location !
Certainly something to think about....
-Sporty