Commentaire officiel
Hello Mehmet,
What kind of sound are you getting?
is it a hum type of sound or a buzz?
Since we can rule out that the soud is coming directly from the AS-1 becuase you said it works fine when its connected directly to the speakers you can try using a ground lifter to see if that eliminates the sound your getting.
Let me know if this works for you.
Thank You