Originally Posted by jonywalker
Thanks, its a good idea. I can change my JL slash amp to drive highs and mids to see whether the noise is there. But the JL has S/N rate above 100dB, and PDX only 76dB, the dealer may refuse my claim. I don't know how should a 76dB S/N look like, so am still looking forward for some PDX user experience.
I have no hiss issues with my PDX 4.150, but I'm using a line driver and a processor before the amp, though...
I used to have hiss issues with my old E46 M3 OEM HU and aftermarket amps/EQ so I started using line drivers before the amps/EQ/processors since then to simply eliminate the issue by raising the S/N ratio not so much of the aftermarket amps but of the OEM HU.