View Single Post
  #162 (permalink)  
Old May 20th 07, 03:37 PM posted to uk.rec.audio
John Phillips
external usenet poster
 
Posts: 99
Default how good are class D amplifiers?

On 2007-05-20, Keith G wrote:

"Trevor Wilson" wrote in message
.. .

"Keith G" wrote
Therefore no amplifier has no 'sound' of its own then?


**Nope. That's not what I said.


It's what it looks like to me - your words (as above): "The ideal
amplifier has no 'sound' of it's own. No amplifier is ideal." - what
conclusion could be possibly drawn from that statement other than all
amplifiers are not ideal and therefore have a 'sound'...??


Logic error, Keith. You can only conclde "no amplifier has no sound
of its own" (i.e. every amplfier has a sound of its own) from three
conditons:

- The ideal amplifier has no sound of its own

- No amplifier is ideal

- All non-idealities in an amplifier create a sound.

You cannot (logically) conclude anything about the sound (or not) of
the non-ideal amplifier from the first two conditions.

The third condition has not been postulated (IIRC). Indeed it isn't true.
There are thresholds for the audibility of non-idealities.

--
John Phillips