We are selling Revel Ultima SUB30 installation version. Apart from side panels and grill, it is technically the same as standard version. It uses 2x15" drivers (one active, other passive). It delivers in excess of 126dB at 30Hz and was the best subwoofer ever built (awarded with 98 points in Audio Magazine) until new Revel model Ultima 2 came out.
For more info please contact us.