Originally Posted by fe342185

http://www.crutchfield.com/p_161LC2I...=%7bkeyword%7d

Above is the LOC i used. Its also a line driver. It improves the sound in opinion. Before this i used the high input of my amp but this LOC definitely made it sound better and makes the amp run more efficiently since the input signal is much better. An additional feature is the device compensates for the bass dropping when you turn up the volume. Audi or bose does this to prevent the door woofers from breaking and distorting. When this happens the bass from the input signal to the LOC drops therfore the bass going to your sub will also plateau. You can notice this when you turn the volume up but the sub bass no longer gets louder.

I also purchased a bass controller that conects to the LOC made by the same company and i custom mounted it on the map lights near the sunroof switch. It looks like it came stock on the car. Just sharing some ideas.