INCLUDED: 2 SUBWOOFERS (HD12D1-X2) + 1 BOX (QBASS12). ___________________________________ SUBWOOFER QUANTITY: 2 (1 PAIR). 3,000W MAX 1,500 WattsRMS Dual 1 ohm voice coils 320 oz. magnet Mounting Depth: 8 1/8 Inch. ___________________________________ (Subwoofer Box Description) *** THE CHAMBERS ARE NOT DIVIDED *** THERE IS 1 SLOT PORT IN THE CENTER