I recently purchased two 12" Alpine Type R's (SWR-1222D) subs and an 1100 watt RMS amp (Alpine MRX-M110). I have them wired for a 2 ohm load i believe. I can only turn my amp gain to about 1/8 turn up and my subs will cut out at 18 volume. I know these subs can handle more than that and I don't...