i have 2 15" alpine type r's and a memphis mcd1500 wired at 2 ohm to get 1500rms from my amp. i have rockford fosgate 4 gauge power wire but my fuse (aug) is only 80 amps. i was thinking yesterday even if the amp was 100% efficent the most ive been getting is only 800watts (taking into account that fuses can let more then what there rated for short periods of times) can someone clear this up? thanks