Here is a quick look at the Audio Control D6.1200.
www.audiocontrol.com/car-audi...
A link on the Audio Control D4.800
www.ocalacaraudio.com/product...
Link for choosing an amplifier
www.ocalacaraudio.com/car-aud...
What separates one amplifier from an other
www.ocalacaraudio.com/bang-fo...
A bit about signal processors
www.ocalacaraudio.com/digital...
Do I really need a signal processor?
www.ocalacaraudio.com/do-i-ne...