KillerKutter

Hi has anyone found a fix for this yet without unplugging the power for the usb ? I just bought the pt01 scratch with jesse dean fader installed but it has the same issues. As soon as i unplug the power for usb/line in its fine but now i cant plug in my beats and cut at the same time. Mine is more of a crackling sound than a hum and starts about quarter volume.When unplugged it is a crisp sound and cut even at max volume. Any answers fully appreciated