|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
75.100.188.177
In Reply to: RE: Recent and future amplifier measurements posted by MarkJohns on November 09, 2015 at 07:59:37
Simple loads indicate whether or not an amp is performing as designed and give some indication of the performance envelope. If there is a problem with simple loads, an amp certainly won't perform better with more difficult loads. When I see audible harmonics in the distortion spectra into a simple load, the amp will behave even worse into a more complex load and it's time to move on...
try it! you know you want to!
Follow Ups:
iF the distortion spectrum is 110 db below the principal tone, does it matter what shape it has?
110 fucking dB?
On the other hand humans are pretty insensitive to low order distortions far above measurabl thresholds so plenty of poorly measuring amps can sound not too bad at all. otoh, it sure seems that modern class D has perfectly good sonic performance, and unbeatable power efficiency, which actually matters to me.
iF the distortion spectrum is 110 db below the principal tone, does it matter what shape it has?
Your assumption is that with dynamic musical content - quite different from a sine wave - is that the performance will necessarily be the same. Engineers like Nelson Pass have proven otherwise.
" The resulting complexity creates distortion which is unlike the simple harmonics associated with musical instruments, and we see that these complex waves can gather to create the occasional tsunami of distortion, peaking at values far above those imagined by the distortion specifications."
Remember the old Crown gear like I used in high school with 0.05% THD/IMD? That should have been inaudible, right? Surely you don't believe that!
but some can't grasp the concept that what you can't hear doesn't matter...
try it! you know you want to!
...yes, they do seem to work great on Maggies.
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: