2 x 12" Alpine Type S Subs JL Audio e2150 AMP Another 4 channel alpine amp. Alpine Head unit.
Now today, while driving, I got a check engine light, so I stopped in auto zone....but they couldn't pull codes, it wasn't powering the checker. So, I go to turn on my radio later around 11pm after dropping off my gf, and my system works, but my subs are not outputting any power. I took a multimeter to see if at least power was going through, yes, there was, but only have as much as my other amp (which I'm not sure if normal). The amp was turned on, and I even tried messing with the settings, even tried replacing the output wire to one of the subs it-self. Nothing. Unplugged my battery, hooked it up, no check engine light anymore....and still no subs.... I really hope nothing is wrong, I don't smell any burning or any distortion, just there is no bass....so I'm really worried here.
Don't forget to check the RCAs - if they're unplugged, you get no sound. If that's fine, next step is to check your subs' voice coils for resistance with your DMM.
I went to an audio shop today, bought a new amp for my subs, no bass. I plugged in my rcas for my 4 channel vocal amp, I got faint bass. I tried replacing RCAS, everything. So I'm guessing it's my bass output on my receiver.... :-\....
I made sure they'd give me a refund, and they let me install it in their shop. It was not the cause, and I got my refund. I found out today it was my ground wire, it was badly corroded.
yeah, and my pride has def taken a shot haha. I couldn't believe it was that....I thought it might be that at first....but it looked alright until we uncrimped it, it was corroded badly :S. Well, ya live n learn I suppose.