Posted by Bob 'Skippy' Blechinger on August 22, 2001 at 06:36:27:
In Reply to: G&L Noisy but Cool posted by DaBass on August 21, 2001 at 08:53:34:
: Just played a great bass, a "new" G&L L2500. Played the stick for about 30 minutes and could get a ton of different tones-you name it. I slapped it and even walked a few jazz riffs. OK, I want this bass, but...
: The bass has a 3-way toggle that turns the preamp off, on and on with treble boost. When I turned the preamp on, I noticed a slight hum and of course a little more hum when I turned the preamp on with the treble boost.
: Can this hum be silenced or muted some way. Will this hum interfere with any studio work? I mostly play live, but I don't want to buy a bass that won't work out in the studio.
I'd imagine you're getting some 60-cycle hum. It can be reduced fairly effectively, but not necessarily eliminated.
Usually, the first thing to check is grounding and shielding. Most basses and guitars could use a good deal more shielding than they get at the factory, to be honest. You can do stuff like lining the inside of the control cavity with copper foil or conductive paint, and it'll improve the signal-to-noise ratio quite a bit.
A good source for information on how to do shielding and grounding is Stewart-MacDonald's "Wiring 101" section on their website (www.stewmac.com); check it out!
Hope that helps!
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