The SQ on the DP is extremely good for how loud it gets. Just tune it nice and low and it will give you all the SQ you want and still get freaken loud!!! DP is more of a SQL driver then a SPL. Common misconsiption, everyone who has had it says it gets unrealy loud but sounds great. I have been saying from some time now and I will say it again, once ppl start hearing the DP's and find out about them they will take off like the XXX did and the Mag's... Very good drive and well priced (cheaper then XXX). IA all the way!!!!!
Jon