I haven't had a chance to hear the Type-X from Alpine. How would you rate these as far as SQ goes. I know the Type-R is more for SPL and I had heard that the Type-X was catered more towards SQ. Is this true? Also, the Type-X is possibly going to be competing with the Image Dynamics IDQv3 for my new system. I will be getting two 10' subs and putting them in a sealed enclosure powered by a 1200x1 monoblock. Any opinions on which would be the better pick?