Schecter JD Electrical Hum Active EMG Pickups

[Clark Westfield]

I have a JD Deservio signature model with an electrical hum when playing, almost Jazz bass like.

The bass has EMG 35hz humbuckers from the factory.

Does shielding or lack of shielding effect active (18v) pick-ups?

It happens in all knob positions.

 

[Thornton Davis]

Probably more of a grounding issue than shielding.

TD

 

[Clark Westfield]

So what is the resolution for a grounding issue.

What should I look for?

Ground under the bridge?

Grounding in my house?

 

[Bobster]

35HZs are passive pickups. Invalid Link Removed

I would check shielding (does it start or stop when you touch the bridge or strings) (is it worse around computers or in certain rooms?)

Do you have good grounds?

Is it louder when the treble is turned up?

Is it the same with different amps?

Best of luck

Bob

 

[Clark Westfield]

It does not change like a Jazz bass when you touch the strings.

It does not change with tone or volume knobs.

I have not looked at the electronics yet. Is there a grounding lug inside the cavity? Is there a ground wire under the bridge like a Jazz?

 

[Bobster]

Don't have the same bass as you, but on my EMG basses, yes there is a grounding wire under the bridge.

Try it in a different room. You may be getting some RF from a computer/fluorescent light, etc. If that's the case, shield more.

Bob

 

[Clark Westfield]

I apologize about my previous facts, the noise does change with the tone knob. Only the tone knob.

 

[Bobster]

It's very likely preamp noise and/or shielding. I recommend shielding foil or paint. But it may take replacing the preamp to truly get rid of the noise.