Treble hissing/noise. Help!

[NeilTionloc]

Hold it, buster!

Is it a hiss? Does it sound like a waterfall or faucet running?

Or is it a hum? Does it sound more like a synthesizer note, pitched somewhere between Bb and B (assuming you're in the US)?

If it's a the former it might be the pre-amp in the bass, but then it wouldn't matter how you turned the bass.

If it's the latter the pre amp has nothing to do with it. Then it matters only how closely matched the coils in the pups are.

Its like high pitched electrical sound matched to key of B when I turned the treble up.

 

[davy4575]

one other thing. If I get mine near my laptop or cell phone, any other electronics and rf generators I get the same thing if that helps. I noticed that when I get near my laptop the other night

 

[NeilTionloc]

one other thing. If I get mine near my laptop or cell phone, any other electronics and rf generators I get the same thing if that helps. I noticed that when I get near my laptop the other night

Yes, mine too.. But I don't play near computer, appliances or electronic units. I only play in my bedroom or couch like 3 meters away to amp, pc and tv.

 

[Rune Bivrin]

Its like high pitched electrical sound matched to key of B when I turned the treble up.

Well, there you go!

You have some electric device(s) around you that's radiating this. Turn stuff off until the problem goes away. Now, if this entails breaking into you neighbor and dropping his power you have a problem...

 

[Rune Bivrin]

Yes, mine too.. But I don't play near computer, appliances or electronic units. I only play in my bedroom or couch like 3 meters away to amp, pc and tv.

Trust me: 3 meters is close enough to be a problem. But there could be other stuff you don't think about. What about lighting? Electronic transformers for halogen lights? Dimmers? Mobile phone chargers? We have a lot more electr(on)ic devices around us than we think of.

 

[NeilTionloc]

Trust me: 3 meters is close enough to be a problem. But there could be other stuff you don't think about. What about lighting? Electronic transformers for halogen lights? Dimmers? Mobile phone chargers? We have a lot more electr(on)ic devices around us than we think of.

I tested it. I turned off all the things, tadda! And it worked. I know sounds funny, But how, is it necessarily to do that when playing or recording?

 

[Rune Bivrin]

I tested it. I turned off all the things, tadda! And it worked. I know sounds funny, But how, is it necessarily to do that when playing or recording?

Try them one by one. Usually there's a specific device that's the culprit.

As for turning them off: Unless you want to record the noise you have to turn the offender off.

 

[NeilTionloc]

Try them one by one. Usually there's a specific device that's the culprit.

As for turning them off: Unless you want to record the noise you have to turn the offender off.

Okay, thank you for your help, appreciate it. So the problem its not my bass though, nor the preamp and the pickups? And I just googled it, could be the DI can solve this?

 

[Rune Bivrin]

Okay, thank you for your help, appreciate it. So the problem its not my bass though, nor the preamp and the pickups? And I just googled it, could be the DI can solve this?

Well, it could be your pickups. I think the EMG HZ pickups are wired to be switchable between single coil and humbucker mode. I don't know if your bass exposes that, but it could be mis-wired.

A DI wouldn't do anything about this. There are basically two things involved: The device that generates the hum and your pickups that pick it up. That's what they do, but if they are properly wired humbuckers the sensitivity to external fields should be small.

 

[huckleberry1]

Are you using any effects ? If so you may need to compensate there. I bought a new GK rig 1001RB,NEO410, and NEO115 and couldn't wait to get home and plug it in. I immediately noticed noise with the treble. I thought the horns were blown or something. After playing with it several different ways, I noticed the noise went away when I turned the treble down. This was puzzling because I had been running through a GK 210 combo with great results. I run through a DigitechBP200 for effects. When I took that out of the loop, the noise went away. Just had to reprogram some channels. Something about the "Boost" control on the head and the effects were not cooperating.

I have this issue with my B7K Darkglass.

 

[korngold]

I have the same issue with my Schecter Stiletto Studio 5. It is dead silent when facing away from my computer, noisy as h3ll when facing my computer. Problem is, it does it on stage, too. So, it has been relegated to hanging on my wall, unused. I have 4 other basses that don't have this problem.

If I plug straight in, it's fine until I turn up the treble on the on-board pre. Then, I get high pitched "hum," though the intensity varies depending upon which direction the bass is "aimed."

I thought maybe it was a cold solder joint. So, I replaced the output jack and resoldered the blend pot. Still, no love.

I'm pretty sure it's correct, but I'm going to go over the wiring here tomorrow:
https://sites.google.com/a/musicianscentre.com/schecter/home/schecter-wiring-diagrams

If it's wired correctly, are there any other suggestions?