Jemsite - View Single Post - Marshall TSL: 3 pins connector for bias setting.
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post #14 of (permalink) Old 11-07-2003, 12:59 PM
Join Date: Mar 2001
Location: Va Beach, VA
Posts: 1,416
I believe that bias setting are more related to tube life than any real significant effect on tone. When I swapped tube brands in my TSL, I adjusted the bias as it was pretty cold compared to the recommended voltage. The fattening of the tone I got was probably more due to the tube swap than the bias correction.

I think there's more to gain by swapping out your preamp tubes than tweaking bias on power amp tubes, not to say that getting your bias right isn't important, I just feel it's more about the efficiency of the electrical circuitry than it is about tone. Just speculation.
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