Brand New Rockford Fosgate R600-4D Prime Series 600 Watt RMS Class D Full Range 4 Channel Car Amplifier
I have this installed in a G35 coupe, with Alpine Type R 6.5 inch component speakers in  front and Alpine 6x9 three-way coaxials in rear, no separate subwoofer.  This amp has a lot of power: I had to turn down the &#34;Punch&#34; dial, turn up the frequency and dial down the &#34;gain&#34; controls because it was making my rear panel shake.  After a little bit of customization (also via the head unit) I was able to get clear and strong mids and highs, and a very impressive bass in my little car.  I am defin