Jazz Bass high frequency crackling

Cosmo_Smallpiece · #1 12-08-2007, 11:05 AM

I've got a 62 re-issue Jazz. Every time my fingers are in contact with the strings and moving it is producing a high frequency hissing, spitting, crackling sound.

I'm assuming that it is the bass causing this because I've tried it through 2 different amps, 2 different cabs and I've changed all the leads. Amps and cabs are a Schroeder 1210L, BFM Omni10, MarkBass LMII and Ashdown ABM500 FWIW.

Anyone got any ideas?

Cosmo_Smallpiece · #2 12-09-2007, 02:58 AM

I should add that if I've got one hand already in contact with the strings it doesn't do it. So does this sound like some sort of earthing problem?

Cosmo_Smallpiece · #3 12-10-2007, 03:31 AM

Anyone?

alexofc69 · #4 12-10-2007, 11:48 AM

It sounds like a ground. Remove the bridge and see if the ground wire is making contact with the bridge. Its supposed to. Sometimes it embeds into the paint so it no longer has a good contact with the bridge. If so, pull it out and reposition it so it makes a good contact with the bridge once you screw it back down.
My MTD Saratoga did that a few months after I bought it. It would hiss and make noice when I toughed the strings. Did the same and it went away. That was 4 years ago!

Japanoak · #5 12-10-2007, 11:55 AM

Yeah definatly a grounding problem. I was gonna say check your cables, but if it stops when you have your hands on the strings its a ground issue.

Cosmo_Smallpiece · #6 12-11-2007, 03:15 AM

Ah ok. Thanks I'll have a look under the bridge.