Hi,
I have JL XD600/1, JL XD600/4, JL Stealthbox two10W3v3-4 and 4xMorel Maximo. I have them on my 04 350Z. It was fine for like a month. Now, My sub is acting up. It happened when I was adjusting my bass volume knob while I was driving. I don't hear anything unless I crank up the bass knob to 90% and up. By the time I do hear the bass, it's all distortion and I can’t listen to music for more than 2 mins with that kind of bass.
Audio shops swapped with another sub to test the problem but still having issue. They also replaced the new bass knob but no luck. When I connected my iPhone directly to the sub amp and bypass the head unit, it seems fine. They told me it could be my head unit. What do you think I need to fix or test. Please help me out. Thanks
