Double 8″ Super Compact Bass Enclosures One Active + One Slave System Specifications RMS/Peak Power: 180/360 Watt Frequency Response: 20 Hz~150 Hz S/N Ratio: N/A Load: 4 OHMs High-Level Input Sensitivity: N/A Low-Level Input Sensitivity: N/A Low Pass Filter: N/A Fuse Rating: N/A Dimensions : 11.4″ x 9.6″ x 2.8″ Feauters Power: Soft Turn-On Circuitfeatures Protection: Thermal, Overload & Speaker Short Protection Input: RCA Low-Level Inputs/High-Level Inputs Output: Output to Slave Unit Remote: Remote Subwoofer Level Control Slave Unit Grill: Custom Molded Heatsink: Cast Aluminum Passive Radiator: Enhance Deeper Bass