Class A power amps and electricity crisis..

[InfigoAudio]

@Atmasphere yes this is exactly what we do. The feedback is applied to a way more linear point than the usual base of transistor, to optimize for minimum intermodulation distortion.
The joy of boiling water cooling a dummy load at 250W of 18+19 kHz without scaring away all dogs in the vicinity of our lab haha
Fun times

 

[Atmasphere]

Good work!

If that is the case then you can run a lot more feedback without a downside, as long as you don't have issues with phase margin (oscillation) or insufficient Gain Bandwidth Product. Feedback really is only a problem if the signal gets distorted, which is what happens in most designs.

 

[AdamZ]

thanks to all for replying.. that was a philosophical and skeptical opinion, not a promotion for Class D amplifiers.. here in EU the price of 1 KW/h has reach 1euro and rising day by day.. of course, anyone of us can arrange his money as he likes.. but it will be very difficult especially for friends owing KRELLS or GRYPHONS or other class A monsters demanding >500W in idle..

* I am using a made by me DIY class D power amp for everyday cool hours listening.. but for serious listening I use my 211 PSET'S !!

Hello.
PLS tell me in which EU Country you pay 1 EU for 1 KWH.
Thanks