[ArtilleryofSound]

I'm posting this here because the PS Audio site seems a bit slow to respond.

My PSA PPP has a Total Harmonic Distortion (THD) of 1.8 at the input and from 1.8 to as much as 3.0 (real bass heavy music) at the output. IS this normal? Shouldn't the THD be less from the output? I'm confused. Can someone please set me straight. I just want to make sure m unit is working right.

Also, does anyone own one of these? Does yours get real hot too? When do your fan turn on? Mine's pretty hot, but the fan doesn't really come on.

Thanks,

Mike

[gedlee]

If the input signal has 1.8% THD then the output signal cannot have less than 1.8 THD, it has to be greater.  No piece of electronics can "correct" incoming THD - it doesn't know if the incoming signal is distorted or not.  It has to assmue that the incoming signal is undistorted and pass it to the output unchanged. Thus 1.8% THD would be the absolute minimum.  If it goes to 3.0% then the piece is adding 1.2% THD to the incoming signal.