Members Phantasm Posted September 12, 2007 Members Share Posted September 12, 2007 Ok, I've got a passive bass, P/J configuration, with a single volume and a single tone knob. There's also a switch to choose P, J, or P+J. I love the sound of the bass, just there's some groundy-type buzzing and stuff going on when I play it. (Pardon me here if this is normal, it's been a whole lot of years since I've owned a relatively inexpensive passive-only bass.) When I touch the strings, the buzz improves. So how do I remedy this problem? The bass works great, just has a noise floor that I'd like to reduce. Link to comment Share on other sites More sharing options...
Members Roguetitan Posted September 12, 2007 Members Share Posted September 12, 2007 Ok, I've got a passive bass, P/J configuration, with a single volume and a single tone knob. There's also a switch to choose P, J, or P+J.I love the sound of the bass, just there's some groundy-type buzzing and stuff going on when I play it. (Pardon me here if this is normal, it's been a whole lot of years since I've owned a relatively inexpensive passive-only bass.) When I touch the strings, the buzz improves.So how do I remedy this problem? The bass works great, just has a noise floor that I'd like to reduce. has it always done this?does it stop when you touch the strings?are the electronics properly shielded? Link to comment Share on other sites More sharing options...
Members Phantasm Posted September 12, 2007 Author Members Share Posted September 12, 2007 has it always done this?does it stop when you touch the strings?are the electronics properly shielded? Well, I just got the bass today and it's from 1989, so I don't know if it always was a little noisy. It has been since I picked it up from the post office today. It is greatly reduced when I touch the strings. When I open the back cavity, the only foil I see is on the cavity cover plate. Link to comment Share on other sites More sharing options...
Members garytees Posted September 12, 2007 Members Share Posted September 12, 2007 Put some aluminum foil tape across the pickguard where the tone/volume/inputs are. That may help. If the bass has no pickguard, put the tape on the inside cavity where the tone/volume/inputs are mounted. Link to comment Share on other sites More sharing options...
Moderators Kindness Posted September 12, 2007 Moderators Share Posted September 12, 2007 It is a shielding issue. Tell us what the bass is or post a picture and we can give you good advice how to shield it. Link to comment Share on other sites More sharing options...
Members Phantasm Posted September 12, 2007 Author Members Share Posted September 12, 2007 It is a shielding issue. Tell us what the bass is or post a picture and we can give you good advice how to shield it. Ok, I'll take a picture tonight and post it. Link to comment Share on other sites More sharing options...
Members guitargod0dmw Posted September 12, 2007 Members Share Posted September 12, 2007 +1 on the shielding. I had a bass do the exact same thing so I took all of the electronics out of it and covered all of the cavities with copper shielding tape, and grounded everything. It doesn't make a sound now. Link to comment Share on other sites More sharing options...
Members dDigitalPimp Posted September 12, 2007 Members Share Posted September 12, 2007 you might want to make a little ground wire that connects the bridge to the pots. if you touch the stirngs and it almost stops that is the ground that is needed. the shielding will cover the rest of the hum that you still hear after that. Link to comment Share on other sites More sharing options...
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