Rc 415

You live in Transylvania?

You want to have a 12" XXX in the same car as two 15" XXX's?

I had 8 guage in mine, it fit perfectly.

Yeah, but I had the battery disconnected, its not doing it now however, still trying grounds and still whining.

Well thats a bummer, I'll call US Amps tomorrow then and see if I can send it in. One other thing I noticed, is that the ground coming from the amp is live, when I was looking for a better ground I put the ring connector over a bolt and it sparked, it would spark every time I moved it while it was touching metal, is that supposed to happen?

The amp ground is good as far as I can tell, I have tried 3 diffrent places all bare metal. none of the speakers ground, and ajusting the gain does not alter the whine, I've turned it all the way down and nothing.

Ok, I did a little bit more research in my car and here is what I have found out: 1) Its not the RCA's, How do I know? because I unplugged them from the amp and head unit and the whine was still there. 2) Its not the alt, How do I know? because the amp whines even when the motor is not running. Also, some of the radio AM stations are messed up and have a strange noise coming from them when the amp is connected. I am using 1/0 Ground and 1/0 power cable. My radio is grounded at the stock location wherever that is, the place that installed it just connected it to the original harness with a harness adapter.

I have tried 3 diffrent grounds all to bare metal frame of my truck, and I can not get the whine to go away, what can I do??? Its a MD2 Btw.

WOW, I wonder what you would hit with them ported!

What is your box tuned at?

Dimentions on that box and port?