trem said:
The adjustable bias thing IMO has its merits. The rest of the complaints were due to plain ignorance.
I retube and set the TSL100 at 86 per pair (dcmilvolts) and on occasion have hit it less/more and really don't hear much change because it ..well after all...does have a few knobs....
RE: Mark IV:
I'm not too sure adj. bias has its merit given the plethora of knobs.... LOL
I do not have one. I may when they start getting dumped for the next leatest/greatest by a few like minded as the OP.