I'm running a Alpine MRV-F540 and absolutly love it. Its rated at 87w x 4 RMS @ 4ohms.. I got it because I was an Alpine dealer, and it would match my MRD-M501. But I dont think I would be much happier with anything else. I'm pushing PG tantrum components all the way around and it powers them perfectly.

2000 SVT Black/Tan #1633/2150 (a few mods) Alpine: CDA-9835, MRV-F540, MRD-M550 PG: TANTRUM-X 6.5 COMP all around. Some people wear Superman pajamas. Superman wears Chuck Norris pajamas. CEL currently: Off