EQ-Max 12 12 inch Subwoofer The EQ-Max 12 is Velodyne's best subwoofer for the money with a 12 inch woofer. The 450 watt dynamic amplifier and down-firing port go as low as 25 Hz while output up to 135 Hz at 3dB down further rounding out your satellite speakers' low end. Press the remote's EQ button to perform Auto-EQ, which matches the subwoofer's bass output to your room...
Oxygen Audio SPIRAL380 15 inch. Subwoofer, 330 Watts, 85 oz Magnet (O2 SPIRAL380) (SINGLE PIECE). *Size: 15' subwoofer*Power (WRMS): 330W*Magnet size: 85 OZ*Frequency range: 28HZ/1.2KZ*Sensitivity: 90*1W/1M/2V (dB)