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Funny Speaker noise... help?

elkym

Member
Messages
1,320
I had a guy mod my Peavey a little while ago... he set the cathode bias a little hotter...

Seems like it's louder now-- that doesn't bother me...

But now when I hit about 7 or 8 on my volume knob... I get fizzy/fuzzy/spitty sounds from my speaker... is this 'cone cry'?
 
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rockon1

Platinum Supporting Member
Messages
13,201
Hard to say.The easiest way to find out if its a speaker issue would be to hook up the amp to another cab. Bob
 

phsyconoodler

Member
Messages
4,315
Peavey what?I don't know of any cathode biased Peavey amps.
Most cathode biased amps are already plenty hot,and making that relationship even hotter is a recipe for disaster.
 

rockon1

Platinum Supporting Member
Messages
13,201
Peavey what?I don't know of any cathode biased Peavey amps.
Most cathode biased amps are already plenty hot,and making that relationship even hotter is a recipe for disaster.
Only one I can think of off the top of my head is the Classic 20. Maybe he just meant biased it(fixed bias) hotter? Bob
 
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rockon1

Platinum Supporting Member
Messages
13,201
It's Peavey ValveKing. Sorry about that lack of clarity.
Thats a fixed bias amp. Perhaps he changed the bias resistor to run the tubes hotter. Bring it to a music store and plug it into another cab if you dont know anybody with a cab to try. Bob
 




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