I had JL Audio Coaxils running off my Alpine HU in my car. They had no bass whatsover in them, and when i tried sending bass through them, they distorted like crazy. Crossover was at like 100hz. Well, i sold them to my friend (who happens to have the same exact car as me) and he is running them off his Factory HU. I heard them today, and they sound COMPLETELY different, they have tons and tons of bass, so much that they rattle stuff in his car. He just mounted them to the door metal, no fancy install or anything. And before you guys say my install is bad, i had these same speakers in a Nissan Maxima w/ the same Alpine HU and they sounded like shit too. How is this possible? This HU sounded like it does from day 1, is it defective or something? Right now i have amped CDT's and I have the same "no bass" problem, is this just completely a HU issue?
