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    Calibre .22 speaker sensitivity

    Hi, I was looking for a louder replacement speaker as I usually run the amp quite close to its limit. But both the V30, if that's what it is, and the possible replacement EVM12L, which I thought would be louder, are both 100 db so, should I be looking for something other than just the...
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    strange sounding studio .22 part 2 the sequel

    Since trying to find out what’s wrong with this amp it’s been serviced by a top amp tech who changed a valve and an incorrect transistor. The bias hasn’t been changed. Everything checked out fine on the scope and the guy’s a great engineer but he’s not a musician, and it still sounds horrible...
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    studio 22 strange tone

    I have a studio 22 from about 1986 which over the last couple of years has begun to sound very bright even with the presence off and the treble low. It's like an unpleasant upper mid spike. Different leads, graphic off, with or without effects. Guitar sounds fine in other amps. Has been serviced...
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    Studio .22 valves and tweaks

    I have a Studio .22 serial number SS1334. Bought in 1986, I think. All MB valves at the moment. It’s in for another service now. I’d like more headroom on the output if anyone has any valve suggestions. I’m also wondering whether to put a V30 in it. I'm also told there's no way to increase the...
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