I received my 15H on Friday and quickly swapped out a pair of Polk MicroPro 2000 subs that I had been using. Frankly, I don't think I could not be more pleased with my purchase.
I have a 2050 cu/ft dedicated theater room and this sub fills it beautifully. The sub was a bit larger than I had imagined (mentally); but I had the room for it.
I already have about 20 hours on them and the bass simply envelopes while listening to music and rattles their teeth while watching movies.
My receiver's crossover is set to 80Hz and I have tuned the sub to a SPL reading of 80.5db at the primary seating position. My SPL readings average 78.5db across 31.5Hz, 40Hz, 50Hz, & 63Hz tones and 82db across 100Hz 125Hz, 160Hz, & 200Hz tones; so I've adjusted the sub level on my receiver +3db. The sub is currently setup with 1 port plugged, EQ1, Q-control set to .5, and the volume set to the 10 o'clock position.
Dr. Hsu and his team were one of the primary reasons I went with this sub. There are plenty of reviews out there noting their quality customer service and they certainly have lived up to those reviews for me. Highly recommended!Edited by tko-rock - 12/2/12 at 8:18pm