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Old 02-07-2013, 01:21 PM   #1
hoodsarmy
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Amp clean channel is distorted.

hey guys. ive had a Peavey Valveking Tube Halfstack for a few years and I love it, but today i switched it on the clean channel with low volume, with direct connection to my guitar, and heard distortion. I cant seem to get rid of it, which is driving me nuts because i use distortion pedals. whats wrong with my amp? is it my tubes? and what price range am I looking at if i take it to a shop to fix it?
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Old 02-07-2013, 01:35 PM   #2
Dimarzio45
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It could be the transformer. Maybe the tubes.
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Old 02-07-2013, 01:37 PM   #3
hoodsarmy
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ITS NOT MY AMP. MY GUITAR (ESP EC-1000) A GUITAR WITH ACTIVE EMG PICK UPS IS EMITTING DISTORTION. but still. how can i fix this
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Old 02-07-2013, 01:38 PM   #4
hoodsarmy
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i tested my guitar on a bass amp and im still getting distortion
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Old 02-07-2013, 01:47 PM   #5
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Have you tried changing the battery for your pickups?
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Old 02-07-2013, 01:53 PM   #6
hoodsarmy
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Originally Posted by LukeBTH
Have you tried changing the battery for your pickups?

yeah, i dont have another battery but taking the one inside seems to have stopped the distortion.
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Old 02-07-2013, 02:29 PM   #7
tubetime86
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Quote:
Originally Posted by hoodsarmy
yeah, i dont have another battery but taking the one inside seems to have stopped the distortion.

Wait, removing the battery and not replacing it fixes the problem?
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Old 02-07-2013, 02:43 PM   #8
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Wait wut
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Old 02-07-2013, 02:50 PM   #9
Dimarzio45
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Best solution: Scrap the active pickups and put in Dimarzios. Don't rely on a battery for tone. Problem solved!
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Old 02-07-2013, 04:50 PM   #10
Blktiger0
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^You're certainly not a dimarzio fanboy

I'm curious as to how your pickups are still working after removing the battery. I was under the impression that Active pups just plain don't work without their battery, but I guess I've never actually owned any, nor do I consider myself an expert on how they work.
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Old 02-07-2013, 05:23 PM   #11
MrFlibble
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Technically active pickups do work without a battery, they're just very, very, VERY weak.

Basically, all an active pickup is is a very underwound humbucker, with very unbalanced coils, an extra-weak magnet, some good shielding and a built-in preamp, which is what the battery is for. The low and unbalanced coils give you a very wide frequency response and generally 'more tone', for lack of a better term, than a passive will, but you do need that preamp to make the signal loud enough to be used. Without the preamp the signal is so low that it can't be heard, nine times out of ten.

Epiphone sort of got around this with their 'EpiActive' pickups, which were slightly closer to regular humbuckers in wind. The problem then was that the active mode didn't have the frequency response of other actives and the passive mode was still considerably quieter than most passive humbuckers, and they had a bit of hum to them, too. Seymour Duncan released their preamp as a standalone product that can be wired to any existing pickup so you can do a similar active/passive switch, but again it doesn't work so well as all you're really doing is taking the normal, more restricted and noisier passive signal and turning it up a bit.


... But yes, sounds to me like OP had a dying battery, or wasn't used to the sort of output that actives generate, and is now making do with the tiny output that active pickups make without a battery. Get a new battery and dial your amp in to respond properly to high output.
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Old 02-07-2013, 05:39 PM   #12
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Did you turn your built in FX off?
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Old 02-07-2013, 05:41 PM   #13
DeathByDestroyr
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Using your volume knob?

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Old 02-07-2013, 06:46 PM   #14
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Quote:
Originally Posted by tubetime86
Wait, removing the battery and not replacing it fixes the problem?


+1
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