Radfordman
pfm Member
I have a good selection of amplifiers, but my favourites are Radford STA25 III and Quad II power amplifiers.
None of my transistor amps seem to give quite the same satisfaction. I am fond of the Quad 303, and have four of them. They are all set up pretty well to spec.
I thought that I might try an experiment, increase the output stage bias current to about double.
I have done this, 20 mV across the pair of resistors R124/125, instead of the usual 10 mV.
Heatsinks do not heat up excessively and I think that I am a little step nearer to the sound of the Radford STA25 / Quad II.
None of my transistor amps seem to give quite the same satisfaction. I am fond of the Quad 303, and have four of them. They are all set up pretty well to spec.
I thought that I might try an experiment, increase the output stage bias current to about double.
I have done this, 20 mV across the pair of resistors R124/125, instead of the usual 10 mV.
Heatsinks do not heat up excessively and I think that I am a little step nearer to the sound of the Radford STA25 / Quad II.