Michael Currie Posted April 25, 2011 Share Posted April 25, 2011 I installled an Audere JZ3 preamp in my fretless Fender MIM, and it's great! The only problem is that I get a slight crackle and hum on some amps when I touch the preamp controls? Any ideas? I took time to make sure that no wires crossed during installation, but I might have missed something. Cheers. Here's a link to a picture of the same model of JZ3 if your interested [url="http://img527.imageshack.us/img527/9619/038uf7.jpg"]http://img527.imageshack.us/img527/9619/038uf7.jpg[/url] Quote Link to comment Share on other sites More sharing options...
ikay Posted April 25, 2011 Share Posted April 25, 2011 Sounds like an earthing issue of some sort. Have you checked that the earth wire from the Audere is connected to the ground wire from the bridge? Quote Link to comment Share on other sites More sharing options...
Michael Currie Posted April 25, 2011 Author Share Posted April 25, 2011 Yeah, I crimped and heatshrunk those wires together. It's actually not much of a big deal, as it only happens with my home practice amp and one other, no effect at all on any other, thanks anyway, I'll have a look next time I'm replacing the battery. Quote Link to comment Share on other sites More sharing options...
XylemBassGuitar Posted April 25, 2011 Share Posted April 25, 2011 You might even want to solder those wires together rather than just crimping them...you should get a better connection that way. Also, I've seen a few instruments that had similar issues due to defective or almost-dead batteries, when did you last put a fresh one in there? Quote Link to comment Share on other sites More sharing options...
icastle Posted April 25, 2011 Share Posted April 25, 2011 [quote name='Michael Currie' post='1210960' date='Apr 25 2011, 03:46 PM']Yeah, I crimped and heatshrunk those wires together.[/quote] By 'crimp' - do you mean you've used one of those red sleeved tubes that you poke the wires into and then crush using a crimp tool? Quote Link to comment Share on other sites More sharing options...
Michael Currie Posted April 26, 2011 Author Share Posted April 26, 2011 I put a fresh battery in there when installing. Well, you get these metal sleeves that you cover the two ends of the wires with, crimp them with wide gauge pliers, cover in a heatshrink sleeve, and heat with a lighter or matches. Quote Link to comment Share on other sites More sharing options...
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