The Future of Audio Amplification

which has to be filtered in order to prevent the analyzer from having difficulty; in JA’s words:

This is just pure BS and you have been sucked in by those words "your just echoing Stereophiles words" that are advertiser driven, and anyone can see it. And I think you know that, as you don’t want your Class-D to look bad when a 1k square wave is put through it.
  
As no such AP filter was used at Stereophile before, when all Class-D were measured with the same analyzers. And it showed just how bad what was coming out of Class-D’s.

Also when the AP filter was introduced, Stereophile use to give the wave form shots with and without the filter. And then later mysteriously only with the filter, probably because of manufacturers complaints how bad it looked without filter.
So one can see it was just the ugliness of the wave form without the filter, that potential customers didn’t like seeing, and this effects sales, and advertising.

Just like ricevs (Tweak Audio) you are both protecting your soon to be released Class-D amps, and just ricevs you do/say anything not to tarnish it’s launch. Again a blind man can see it.

@georgehifiInstead of made up stories, just stick to the facts.
If the filter is not used on the AP, it goes into slewing protection.

We don't use a filter since we are using oscilloscopes; any waveforms we see have the residual sine wave imposed. Depending on the waveform the residual might just look like hash on the waveform until you open up the horizontal gain and see that its just a sine wave.

+1 Guido

Isn't it interesting that a guy that continuously blasts active preamps because he manufactures and sells passives would protest so vehemently about his perception of what another manufacturer is doing that may benefit them? The two he is taking exception with have been nowhere near as overt as he has.