Question about Peavey Valveking Vk100 Guitar Head

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Peavey vk100 clean channel and lead channel low volume

Just replaced the power tubes with four sovtek 6l6wxt tubes, and the clean and lead channels are so quiet at 9 on the volume dial it sounds like a 15watt practice amp. However, when the gain button is pushed in I get my normal distortion volume whether it is in clean or lead. I`m only getting the right volume with the gain button active. Does anyone know what could be causing this?

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SOURCE: My Peavey vk100 head is

You may simply be overdriving the clean channel and causing it to "flat top" . See if it occurs when you back the gain down a bit. New tubes PROBABLY will not help and be a waste of money. You may be unconciously playing harder during the popping episodes. You cannot hear level variations smaller than about 3 Db BUT the electronics will sense much smaller variations. You could gently tap the tubes with a lead pencil to listen for any pops... NOTE: tubes can be slightly microphonic so some sound from tapping is normal.


Yes, a cable can be noisy and not show itself when using intentio0nal distoprtion... try another to verify it is not the problem.

Posted on Jan 02, 2011

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SOURCE: Wires to main speaker are, Yellow & Blue

Yellow should be the positive. Try plugging in and reversing. The louder of the two is the one in phase and the correct wiring. If the speaker is pushing out when playing , it is in phase and correct also.
The distortion problem could be a speaker going out. It may not be totally blown, but may be verging.
Holding your hand out as wide as you can push against the speaker lightly. If there is a rubbing or scratching sound, the speaker could be damaged.If it moves freely, and there is no scratching its okay.
Another possibility is the clean channel may have a channel volume set to high. Make sure the clean channel volume is set lower than the master volume otherwise you can get distortion on that channel too.
Good Luck.

Posted on Feb 21, 2011

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Yellow should be the positive. Try plugging in and reversing. The louder of the two is the one in phase and the correct wiring. If the speaker is pushing out when playing , it is in phase and correct also.
The distortion problem could be a speaker going out. It may not be totally blown, but may be verging.
Holding your hand out as wide as you can push against the speaker lightly. If there is a rubbing or scratching sound, the speaker could be damaged.If it moves freely, and there is no scratching its okay.
Another possibility is the clean channel may have a channel volume set to high. Make sure the clean channel volume is set lower than the master volume otherwise you can get distortion on that channel too.
Good Luck.

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You may simply be overdriving the clean channel and causing it to "flat top" . See if it occurs when you back the gain down a bit. New tubes PROBABLY will not help and be a waste of money. You may be unconciously playing harder during the popping episodes. You cannot hear level variations smaller than about 3 Db BUT the electronics will sense much smaller variations. You could gently tap the tubes with a lead pencil to listen for any pops... NOTE: tubes can be slightly microphonic so some sound from tapping is normal.


Yes, a cable can be noisy and not show itself when using intentio0nal distoprtion... try another to verify it is not the problem.

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