Josh49
CarAudio.com Newbie
My alpine rw-12d4 recently started making this sort of flapping noise, sort of sounds like a plastic or paper bag is in front of the air port. It only starts making the noise when i turn it up and it actually starts putting out loud bass. I’ve taken it out of the enclosure and it still seems to make the noise. Subsonic filter set to about 30hz, and gain is under half. I’m using a $30 line out converter from amazon to get a signal for the rcas. Still sounds good but the noise is annoying.