#1
I have this amp: http://www.ampwares.com/amp.asp?id=48

2 6l6gc and a 12ax7 phase inverter.

My question is this - is this amp's bias adjustable? And if it's not, would I be able to replace the tubes and just be done with it?

Also tube recommendations would be nice.
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Ibanez S370 (all custom)
Mesa Boogie Studio Pre
Fender Champ 25se (used to power Mesa pre)
Custom 2x12 cab w/ Eminence Texas Heats
#2
you don't need to adjust the bias if you replace it with the same type of tubes.
Prs se Holcomb is the answer
#3
that's what i figured. just needed to make sure
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Ibanez S370 (all custom)
Mesa Boogie Studio Pre
Fender Champ 25se (used to power Mesa pre)
Custom 2x12 cab w/ Eminence Texas Heats
#4
It's still preferable to adjust bias as tubes will be slightly different, particularly if you don't buy the same brand - but you can certainly get away without. Just expect you might have a little shorter tube life and it might not sound quite as amazing as it could if it was perfectly adjusted, but you will probably find it more than good enough.
#5
That has a fixed non-adjustable bias.
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#6
Quote by AM
you don't need to adjust the bias if you replace it with the same type of tubes.


that is true enough not to harm anything too bad.

It's still preferable to adjust bias as tubes will be slightly different

right on. some people will even rebias their amps every few months as your bias 'drifts' marginally and sympathetically with a number of conditions.

Quote by Cathbard
That has a fixed non-adjustable bias.

yes, that is strange. it says solid state preamp, with a phase inverter tube which implies a push pull A/B operation, but it has a set of 6L6's and the output is rated at 25 watts which implies the power section in run in class A. so the power section is a push pull class A power section? short tail phase inverter? that is a little unique.

interesting little amp. they made those in the 90's? kinda reminds me of a music man.
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