A question to Jim Clark. It is not clear how the biasing function on the Crimson unit works. I am guessing that one would not need a voltmeter for biasing, but it doesn't appear as though it has auto-biasing.
Can you explain the biasing procedure? Thanks.
The proceeder above is correct. Generally the bias is set close from when the amp was ran during burn in. After the amp warms up for a few minutes adjust as needed. Double check in 20 minutes. Personally I set them on 80 mA.. No meter is needed. The front panel meter read bias.
After this start up, you won't need to adjust bias again for years, unless you just want to experiment. The 350s use a similar circuit. I have ran those over 2 years, almost every day, without need to adjust bias.
Really about as painless as solid state.
Can you explain the biasing procedure? Thanks.
The proceeder above is correct. Generally the bias is set close from when the amp was ran during burn in. After the amp warms up for a few minutes adjust as needed. Double check in 20 minutes. Personally I set them on 80 mA.. No meter is needed. The front panel meter read bias.
After this start up, you won't need to adjust bias again for years, unless you just want to experiment. The 350s use a similar circuit. I have ran those over 2 years, almost every day, without need to adjust bias.
Really about as painless as solid state.