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[binboy2003 10+ year member]

DD 3515c

My 3515 is currently being powered by a 600wrms DEI amp, the box is around 4.8cuft and it goes fairly loud atm and the SQ is quite good also.

 

[B_Master_Flash 10+ year member]

SI Magnum D2 15"

Running in 4.3cuft tuned to 30hz powered by a BX1500D. Outstanding SQ, reproduces quick hard beats w/o any lack of SPL and never slurrs even lighting quick basslines. It sounds incredible for any music w/ a good bass line, esp. rock, techno, jazz, etc. For rap it sounds good, deep powerfull bass is not lacking, but is not a driver I would recommend for ppl who want to listen to only rap music. The power rating of 600wrms (or is it 900?) is considerably underrated, it takes the bx1500d w/o any problems. I've had a good number of other setups and I can say w/o a doubt this sub has the best SQ of any I've ever used.