I just bought an OLP MM3 5 string last night (great bass for the money), and just noticed a problem. When I stand more than 10 feet away from my amp, I get a ton of noise. What would cause this?? This is the only bass that it happens on. It really isn't that big of a deal. I got the bass just to bring to work and practice. But I would like to know what causes this problem. Thanks for any help.