JBL would beat DVQ in SPL but both will sound awesome. Same company so can't go wrong with either. The JBL is more SPL/higher power handling oriented but still plently of SQ in it too.
DVQ wants ~400-450
P1220D don't be afriad to give it ~400-700 //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
my 12VQ hit hard off my 601.1 in 2.25cf tuned at 28Hz