Quote:
Originally Posted by
Scott Wilkinson 
This is one of the most hotly contested debates in all of audiophilia. Manufacturers make extravagant claims about how different materials and geometries affect the sound—and they charge extravagant prices for these innovations.
I don't see a need for this to be hotly contested. Telecommunications companies, AT&T in particular, has spent decades and billions of dollars researching the effect that different materials, wire shapes and twist geometries have on signal integrity. It would help if cable companies provided scientific measurement evidence (Fast Fourier Transform noise spectrum measurements, time domain signal analysis, transient analysis, etc.) of their product's performance. However, I understand that such information is often considered proprietary. Even if such data were provided, it would still be up to the consumer to evaluate the product in their audio system.
With regard to extravagant prices, there are snake oil vendors in every field of merchandise. Just because some "high performance" cable manufacturers are dishonest it does not mean they all are. A consumer must educate themselves in order to determine if the price asked is fair in relation to the performance benefits, if any, provided.
Quote:
Originally Posted by
Scott Wilkinson
Pictured here is a cross section of the Stealth Audio Dream V10 speaker cable, which lists for $14,000 for a pair of 2.5-meter lengths.
Even if the Stealth cables were $3 a foot, I would be concerned with the helium leaking out over time.
Quote:
Originally Posted by
Scott Wilkinson
Are such high prices justified?
Without knowing a manufacturer's R&D, manufacturing, overhead and distribution costs, how can a consumer say with any certainty that a product's price is justified? The best we can do is become aware of the stereophonic performance parameters that are important to us and then educate ourselves on how to evaluate those performance parameters.
Quote:
Originally Posted by
Scott Wilkinson 
Have you heard exotic/expensive cables improve the sound quality of an audio system?
With regard to three of your poll options:
1. Yes, and it was a big improvement,
2. Yes, but it was only a slight improvement,
3. No, I did not hear any improvement,
I have experienced all three, sometimes with the same cable used in different systems.
I have also heard inexpensive/non-exotic audio cables improve the sound quality of an audio system. You don't have to spend a ton of money to get a good audio system, just like you don't have to spend a ton of money to get a good car.
Quote:
Originally Posted by
Scott Wilkinson 
What were the circumstances that led to your conclusion?
I appreciate you asking readers to express the circumstances under which they reached their conclusions. When I evaluate any piece of stereophonic audio equipment, I do not concentrate on trying to hear and remember differences. There is too much going on in a stereophonic sound field for a person to remember every detail. Gross sonic differences are often easy to pick out, but if a listener does not have knowledge and experience with stereophonic performance parameters, then they might miss important differences.
I take detailed notes of sound characteristics, along with aerial and lateral maps of the positions of sounds within the sound stage. I often do not become aware of differences until I compare the listening notes for two pieces of equipment.
The purpose of stereophonic audio is to create a convincing illusion of a musical performance in a three dimensional space. With that in mind, the things I assess are the stability, clarity, weight, detail and tactile sensation of sound images. I note how much space is between images front, rear and sides. I note the sustain and decay of string instruments. I note the ambient sounds of the recording space.
A long time ago, the Bell Laboratories scientists who invented and developed home stereo systems expressed a desire that people using those systems become proficient in sound localization techniques:
"Critical listeners were sought in these tests because of a desire to set permanent standards. At the moment, only a small percentage of people fully appreciate high fidelity. Even less appreciate or understand stereo. However, there is a growing sophistication evidenced among users of stereo equipment. Anticipating the future, it seemed wise to avoid naive or unconcerned personnel in these tests to prevent establishing loose standards which eventually might have to be abandoned.
The listeners chosen were sophisticated in the art of sound localization either by working in this field or by education before testing. They were felt to be the equal of any serious listener who is accustomed to playing the same records many times and thus becomes familiar with the more subtle artistic and technical effects."
The above quote is from F. K. Harvey and M. R. Schroeder, "Subjective Evaluation of Factors Affecting Two-Channel Stereophony", Journal of The Audio Engineering Society, Vol. 9, No. 1, January 1961, pp. 19-28.
For someone to say that they evaluated two audio cables and there was a "big difference", "no difference" or a "little difference" really does not aid understanding unless those differences, or lack thereof, are placed within the context of stereophonic performance. If someone says that the sound stage was three feet wider and deeper, if someone says that ambient echoes were more audible, if someone says that a singer's vibrato was more clear, well defined and fixed in three dimensional space, then that is helpful information. But even with that, the improvement someone heard on their audio system is only a suggestion of what someone else might hear on their audio system.
As a person progresses in a hobby, they typically move to higher performance, and higher cost, equipment. Often the higher performance differences brought by higher quality equipment are the type that only an experienced practitioner would perceive and appreciate. Audio is no different in this regard.
Edited by DarqueKnight - 3/4/13 at 11:04am