Hi all. I am testing my new Cort action. very satisfied. At first I thought that the j-pickup hum was a problem until I found some topics explaining that's it's ok for them to hum due to their features. But except the hum I can hear a very strange kind of noise. it's like hearing a very short sound like saying "chick"! sorry for my english but I wish I could describe that noise! I can hear that noise 1 time every 10 seconds with the amp quite loud. Oh! it's just like hearing the dust on your old vinyl-disc player playing an old disc! that's 100% the same (That's not a grounding problem.Sure about that)
It sounds like a shielding problem. Your bass seems to be picking up an external noise through RF. Try facing a different direction and see if it changes...probably should try shielding the control cavity with copper foil. ~Stan
thanks stand 1.How would you call that kind of noise? (the same noise you hear from the dust of old vinyl discs) 2.Why I have that kind of problem only from the j-pickup then? 3. RF? What's that?
RF = radio frequencies. Stupid question to get out of the way: does your pickup have exposed pole pieces? It could just be your strings hitting the pickup.
I hear it only with the bass on. Never tried another cable. but note that I hear that click noise ONLY from j-pickup do you think that it has to do with the hum that the j-pickup does?
There's another pickup in the bass? What is it? As said above, shield it. You'll need this sort of stuff.
There is a p-pickup it's the p-j cort action bass. but then again why I can hear that noise (not the hum) only from the j-pickup? How would you call that noise? -Oh! I have that bass for only 1 week, I shouldn't take the risk and shield it
A p-pickup is normally wound as a humbucker. It cancels noise and hum. A j-pickup is single coil. Single coil pickups sometimes act like an antenna and will pick up all kinds of RF. Sometimes even radio stations! Shielding would be your cheapest fix. ~Stan
Thanks Stan. I thought that only hum is predictable from j-pickups. I think that I will try and risk the shielding project in the future. Do you think that the tape is much better than the copper paint I saw on the site?
It's definately less messy. I sell much more tape than I do paint and have recently stopped even selling the paint. You could also try contacting the place that you bought the bass and have it checked out to make sure that it is not an electrical/grounding problem. ~Stan
I guess that if it was a grounding problem I should have that noise from the p-pickup as well or face the known phenomenon where touching the bass cancels the noise or not?
can you take it back to the shop you bought it from and tell them to fix it? i would not accept a 1 week old bass having problems.
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