hello,
i use 2 of K8060.
if i give verry low signal to input the output soundss ok,
if i give verry high signal to input the output sounds ok, too.
but if i give signal about 25% (of my players output) it is scraping (sounding awful)
when i connect with pre-amp (velleman K8084) is more bad than direct connected to a Player (CD or Walkman)
near the D1 (or R11) it is verry HOT, never mind if the bias is minimum or middle and never mind the power i’m playing music.
i need help !!