Vypyr VIP 1 High-Pitched Squeal

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MinigunMan1
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Joined: Fri Sep 27, 2019 9:54 pm

Vypyr VIP 1 High-Pitched Squeal

Post by MinigunMan1 » Fri Sep 27, 2019 10:47 pm

On the 6505 and 6534 lead channels, with the pre gain around noon, post gain around 9:30, and master volume between 3 or 4, my Vypyr VIP 1 has a high-pitched squeal that makes the channel unusable at a decent volume. I have tried multiple cables, multiple outlets, and multiple guitars, all to no avail.

Is this a common issue or a defect in my amp?

Old dog
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Re: Vypyr VIP 1 High-Pitched Squeal

Post by Old dog » Fri Oct 04, 2019 9:18 pm

What type of guitar are you using? I find the same when using hollow body guitars, but my solid body ones are OK.

MinigunMan1
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Re: Vypyr VIP 1 High-Pitched Squeal

Post by MinigunMan1 » Fri Oct 04, 2019 10:33 pm

Old dog wrote:
Fri Oct 04, 2019 9:18 pm
What type of guitar are you using? I find the same when using hollow body guitars, but my solid body ones are OK.
Both guitars are solid body guitars with humbuckers

lionheart
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Location: Lincoln UK

Re: Vypyr VIP 1 High-Pitched Squeal

Post by lionheart » Sat Oct 05, 2019 6:27 am

Most likely cause is microphonic pickups.
If they have covers tap the cover with a pick. You will hear the sound come through the amp as follows - tick tick = unpotted, dunk dunk = potted.
Unpotted (no wax) pickups will squeal with high gain.
If your pickups have no cover and are unpotted they will be less likely to squeal.

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