A typical complementary circuit has some residual even order distortion due to imperfect mathing of the P and N type devices. If you bridge two such circuits, you can get side-to-side symmetry which is even stronger than the P-to-N symmetry, resulting in further cancellation of residual even order products.Gabevee said:Differential input and complementary symmetry output all but eliminates all even order harmonics? Bridging, if it eliminates the rest, should sound hard and sterile, not smooth, revealing and sweet like it does.
Well, as they say, welcome to the next level. ;-)If that is the case, then a good tube amp is more linear than a good solid state amp... yet measured distortion figures say that tube amps produce even ordered distortion, even in push pull amplifiers, where a good SS amp can have virtually no distortion.
Ah, I meant to say that as Pyramid/Optimus states their supplies as PWM regulated - it's not the case. They chose a 40-45% duty cycle at about 50kHz that is consistant, no matter what the current draw of the audio stages. So, in essence, it's just a fixed width, fixed frequency square wave generator. It works, but it's not very efficient.Thanks for the tips... but... "PWM is a fixed oscillator"