Robert
Tapehead
In the 70s and 80s many of the big Jap companies had amps using some form of sliding bias to give claimed class A perforance.
Was this simple spec chasing (0.001 % distortion etc etc) or do these systems have any real value in improving what we hear?
Seems every big amp used this trick in the output stage at one time and then it vanished. I used a number of big Technics amps with New Class A circuits and they performed well, but ran rather hot if I remember. The old Pioneer I have uses a variation on this theme and also runs very warm at low power.
Are there any sonic drawbacks with sliding bias?
Rob.
Was this simple spec chasing (0.001 % distortion etc etc) or do these systems have any real value in improving what we hear?
Seems every big amp used this trick in the output stage at one time and then it vanished. I used a number of big Technics amps with New Class A circuits and they performed well, but ran rather hot if I remember. The old Pioneer I have uses a variation on this theme and also runs very warm at low power.
Are there any sonic drawbacks with sliding bias?
Rob.