Apocalypse DB-SA252 D1/D2 | 12" SubwooferManual Apocalypse DB SA252 D1 D2 Model DB SA252D1 DB SA252D2 Type Subwoofer Size 12" Voice coil size 2. 50" Cone Paper Magnet Ferrite Voice coil wire Copper Surround Foam RMS Power 1000 W MAX Power 2000 W Frame Alu Impedance 1+1 2+2 Ohm SPL 85. 00 85. 00 dB Fs 32. 57 32. 57 Hz Qts 0. 38 0. 38 BL 23. 22 23. 22 Vas 24. 91 24. 91 L Xmeh 1. 18" (30. 00 mm) Xmax 0. 59" (15. 00 mm) Mounting depth 6. 61" (167. 9 mm) Cut out dimension 11. 00" (279. 3 mm)