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Spider Valve 112 - Sounds fizzy and weak !


Chippsta
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I just bought a used Spider Valve 112.  It's the original model and the former owner did some mods to keep it from overheating.  He put a heat sink on the processor and mounted a fan on the back.  He said it did not over heat like all the others he'd heard about and that he'd left it running 8 hours to test that.  It sounded great in his studio and in my home, but i took it to an out door gig this weekend and it was just awful.  It sounded fizzy, thin and weak even when i had it cranked !   After the second set of struggling, i let it cool down and plugged in my 15 watt Fender Blues Junior.  The Fender sounded louder with fatter bass and just all around bigger tone.  I understand that a 40 watt amp is not going to be 2 1/2 times louder, but i sure expected more !   I haven't tested the tubes, so i think that's my next step.  Any ideas ?

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  • 2 weeks later...

In my experience, failing preamp tubes will gradually cause less volume and tone over a few shows. Not sure if this is also the case for failing power amp tubes. For this to happen so quickly after testing inside would seem to be caused by something else.

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