Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => EZ Board postings => Topic started by: Geezer on June 17, 2005, 09:00:24 pm
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Hoffman Amplifiers
> Tube Amp Building - Tweaks - Repairs
> Question for you experienced tweakers
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dazco6550
Junior tube assistant
Posts: 22
(2/13/04 3:07 pm)
Question for you experienced tweakers
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I have a new build that sounds great with preamp distortion. But i'm not totally satisfied with the clean-up factor when i turn the guitar vol down. I also have a peavey classic 30 highly modded which cleans up perfectly under identical circumstances.
It's not that it doesn't clean up, but that the tone changes in a way i don't care for. Seems to lose a lot more bass than mids, which i know is typical, but it's too much.
Are there any known methods/areas in the circuit that tend to affect this w/o affecting the distortion sound much when the guitar is pegged? I'm thinking likely an input mod of some sort, eh?
jc
I only work on Fender's
Posts: 676
(2/13/04 5:01 pm)
Re: Question for you experienced tweakers
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You could put a small value capacitor across the volume pot in your guitar. This is the same problem that a bright switcn on an amplifier fixes.
dazco6550
Junior tube assistant
Posts: 23
(2/13/04 8:52 pm)
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i have that.......been doing that for years on all my guitars. In fact, i have the bottom tone control on my strats set up to adjust how much or little hi end the treble bypass allows thru as i turn down. But this is amp thing. I'm fine with other amps, but this one just needs the mids tamed when turning down to clean up i think. i just need to know if there is an amp tweak that will cause a tonal change when the impedence changes i guess.
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