Amp squeals ONLY on my Ibanez w/ SH-6

[PwnageEngage]

Hey guys maybe you can help with a problem i noticed on my new amp.

I just bought a Laney IRT15H and play it through the Laney 2x12 cab. It's been great, but I noticed something troublesome today. When I play with the volume at or above 4 on the amp, there's a whistling sound that starts when i don't play anything or when i palm mute the strings. It goes away when i have my NS-2 on (though it can still be heard for .5 sec at the end of everything i play) but it will not go away when its off. So i figured it must be a tube thats microphonic or bad or w/e. But thats when I noticed that if i lower (less tone) the tone pot on my guitar the noise goes away completely.

So I decided to try my other guitars. I tried an Epiphone with alinco style PUPs and 0 whistling even w/ volume at 8. I tried my Cort with EMG 81/85 and 0 whistling with volume at 8. I go back to my Ibanez w/ SH-6 and get the whistling. Lower the tone, and the whistling goes away.

Could this be a problem with the PUP? or just the wiring on the tone pot?

Would appreciate any advice.

 

[Demanic]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

Have you tried lowering the pickup a bit? The Distortion is a fairly hot pickup. Worse comes to worse, if lowering the tone knob a bit solves the problem, then go with that.

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[Boogie Bill]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

I would say that the pickup needs to be potted. If the guitar's tone control is working and rolling off the treble, it is most likely that re-potting the pickup will stop the feedback by lowering the resonant frequency of the entire pickup assembly.

Bill

 

[PwnageEngage]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

Have you tried lowering the pickup a bit? The Distortion is a fairly hot pickup. Worse comes to worse, if lowering the tone knob a bit solves the problem, then go with that.

Sent from my MotoE2(4G-LTE) using Tapatalk

What would be an ideal distance? I play post-hardcore and metal on my Ibanez.

 

[Demanic]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

Just start gradually lowering them one turn at a time and check to see if the squeeling stops.
Also consider some of the other advise regarding the potentiometer or the wax potting of the pickup.

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[PwnageEngage]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

Just start gradually lowering them one turn at a time and check to see if the squeeling stops.
Also consider some of the other advise regarding the potentiometer or the wax potting of the pickup.

Sent from my MotoE2(4G-LTE) using Tapatalk

I really appreciate your input. I'll start by doing this.

Also, here is a video of the problem and here are pics of the guitar/PUPS: http://imgur.com/a/HN4iw

 

[Demanic]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

No problem, I hope it helps. I always believe in starting with the simplest thing first when it comes to diagnosing a problem.

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[Funkfingers]

Re: Amp squeals ONLY on my Ibanez w/ SH-6

What, if anything, is in the gap between the baseplate of the SD humbucker and the bottom of the pickup cavity?

It might be worth filling any air gap to prevent microphonic resonance. Also, some times, letting the polepiece screws touch the body wood can induce unwanted resonance.