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In Reply to: RE: Resonance control via tonewoods... posted by Duster on April 16, 2010 at 10:03:18
If you could remove all vibration from them, the reproduction would most likely more closely approximate the original waveform. I suppose there could be a rare circumstance where a deficiency is somewhat righted by an added resonance, but I'd bet its incidence is extremely infrequent.
Follow Ups:
Think of it this way: isn't the chassis of your components adding its own inherent sound to your component? It makes a difference if its metal or wood, aluminum or steel. Doesn't the chassis have its own inherent resonance?
Reread the laws of thermo dynamics:energy can not be created nor destroyed. All you can do is to transform it. It is impossible to remove all vestiges of any energy generated. You can transform it to something more benign, or you can use it to reinforce something you like. AEither waz you are not eliminating it, simply changing it.
Stu
Hi all ! Mechanical resonance is the main reason two amps sound different although they can measure the same . All components have their own resonances , matching them with tuning devices and cables is how we obtain that flat system response . "Synergy " is a term I hate because it is used to imply there is some magical interaction between two or more components that make them sound "better" . Careful matching your amp to your speakers' needs is the only "synergy " I know of .
Why does a 100,000 dollar plus Steinway or Bosendorfer concert grand use a Spruce soundboard, when they could use aluminum or carbon fiber? After all, the strings are steel and they can charge pretty much whatever they want. Come to think of it even the new Faziolis use spruce, supposedly from their special old growth forest that they own, and their founder is a mechanical engineer dedicated to reforming the sound of the piano.
Ever try dampening the solid state devices in your typical audio gear (transistors)? The sonic differences are rather profound. The truth is every individual component has its own particular resonance which is imparted to the overall sound. Replacing shelving is only one means of controlling or tuning that resonance. If only it were true that only amps and speaker make the only audible difference. The truth is far from it, and if you firmly believe that you will be in for quite a surprise later.
Just consider that musical instrument makers have been experimenting with materials literally for centuries. Modern makers like Yamaha have come with carbon fiber violins as well as ceramic ones. Funny how the traditional wooden ones still dominate, particularly at the professional level. Haven't seen an electric keyboard replace a concert grand yet either. Modern electronics and audio engineers have a lot to learn from musical instrument makers
Stu
nt
..I won't argue my experience of beneficial resonance anymore than any tube guy should argue the beneficial presentation of odd harmonics by tubes...
Cheers, Duster
;-D
believe it is the even harmonics not the odd numbered ones.
Stu
-snip-
Some aficionados who prefer Class A amplifiers also prefer the use of thermionic valve (or "tube") designs instead of transistors, especially in Single-ended triode output configurations for several claimed reasons.
For those who prefer low distortion figures, the use of tubes with Class A (generating little odd-harmonic distortion, as mentioned above) together with symmetrical circuits (such as push-pull output stages, or balanced low-level stages) results in the cancellation of most of the even distortion harmonics, hence the removal of most of the distortion.
-snip-
Yeah push pull cancels out much of all harmonics since both halves are working in opposition, but that doesn't explain single ended stuff, where there is no cancellation. Pure Class A is single ended for the most part. There is no symmetrical half.
Stu
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