Hmm, I don't think I imagined all these simple noise-free installations I've seen. The Mk.2 empeg works exactly like any other car stereo with 4V line outputs, except the noise floor is far better than most.

CCA installed our Mk.2 before we even had a head unit available to test it - a blind install, zero noise. If you need any kind of a filter then that's down to your installation/amps/vehicle/luck-of-the-draw.

Rob