Without specific instructions and a quality DVOM to make accurate measurements makes for a foolhardy endeavor. Turning screws and tuning by ear = bad idea. I have done bias adjustment on Classe Dr-8's. The measurement for that amp was a range of 70-96 ma per channel divided by the four bias pots per channel. An infrared gun is handy to measure heatsink temp as well. The amp needed to be powered several hours at idle prior to making any adjustments. I preferred 88ma or 22ma per pot.
