The 555s were adjustable.... Why don't you ask your local dealer or Adcom? You should have the bias limit figure & a meter to do this anyway. My Parasound dealer biased my Adcom amps for me.......
Not something for an amatuer-I wouldn't try it myself. Make a mistake, you fry something in the amp-or yourself.
Not something for an amatuer-I wouldn't try it myself. Make a mistake, you fry something in the amp-or yourself.