My 2 months-old Carvin SB4001 is making noises in active mode as the treble is turned up, which are even higher when the pickup's are soloed, and EVEN HIGHER when I'm not touching the strings or any metalic part of the bass (tuners, bridge, knobs/knob plate, etc).
I know this is a common thing among between active basses, but Carvin's J99A pickups are famous for being the most silent pickups out there, which is getting me worried.
Also, the tone knob makes a very loud noise when turned if I'm not touching these metalic parts of the bass (it doesn't do that on passive mode though).
I was thinking it would be a matter of poor shielding, but then I unscrewed the knob plate and the inside was entirely covered with copper foil.
Does anyone else has similar experience with a Carvin bass? Is this noise expected or not?
I recorded it through my audio interface with some annotations at SoundCloud so you guys can hear it: https://soundcloud.com/rafael-freita...001-noise-test
Any input would be appreciated. Thanks!
Obs: My bass has the Master Vol/Blend setup, if that helps at all
Obs 2: Already tried changing batteries. Put brand new ones and no changes at all