For extra low-frequency extension and enhancement, the dual 12 inch powered KSub is perfectly matched to the rest of the K Series. The K8, K10 and K12 all have a selectable high-pass filter for use with the subwoofer. The KSub includes a fixed low-pass filter so it will accept full-range input. Constructed of premium birch, the QSC KSub includes high-quality, low-noise casters and a threaded...
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)