The digial design 3512 hit 144.2 db at 700 rms at full set volume of 21 on the cd player and the audioque 2.5 12 hit 144.9 db at 19 volume out of 21 on the cd player (less than 700 rms)....from what we can tell the digital design 3512 could hit 1.5 db more or so given 1200 rms but ourstock battery and stock alternator 130 amp cant give enough to produce the 1200 rms out of the amp .....these results were in the exact same box port tuned to 54 hz but the audioque hit its spl below port tune (53 hz wierd) and the digital design did its best spl at 55 hz...so long story short if you dont have the charging to give a higher power handling sub you might want to think twice
I'm tellin you. My 2 sd2.5 12's on 400rms each, banged so hard. They were tuned to 32Hz, in a 4.6CuFt enclosure. My 2nd favorite system I've had...I would have no problem running them again. I've seriously thought about selling my Q's and getting 4 of them.
}