Comp 12-inch (30cm) Subwoofer, 4-Ohm, RoHS CompliantDeep bass. Great value. The 2016 Comp Subwoofers give you deep bass and a great value. 12" Comp 4 Ohm DVC The 2016 Comp 12-Inch Subwoofer is a 4-Ohm speaker, made to give you the strong lows you seek every day. This Comp sub features a thick woofer cone, 360-degree back bracing, a strong motor structure and perimeter venting to ensure you get the strong, reliable bass you need. The Comp 12-Inch Subwoofer works best with a sealed or ported enclosure and 150 watts of recommended power. See below for more details. Comp® Specifications Size (IN.,CM) 12, 30.0 Impedance (OHMS) 4 SVC Max Rec Amplifier Power (WATTS PEAK/RMS)* 300/150 Sensitivity (dB 1w/1m) 88.3 Frequency Response (Hz) 27-500 Mounting Depth (in, cm) 5-7/8, 14.8 Mounting Cutout (in, cm) 11, 27.9 Min Sealed Box Vol (cu. ft, L) 1.25, 35.4 Max Sealed Box Vol (cu. ft, L) 3.5, 99.1 Min Vented Box Vol (cu. ft, L) 1.75, 49.6 Max Vented Box Vol (cu. ft, L) 2.25, 63.7 Highlights: 12" 4-ohm subwoofer power handling: 50-150 watts RMS peak power handling: 300 watts frequency response: 27-500 Hz sensitivity: 88.3 dB Specifications: Dimensions (Overall): 7.25 inches (H) x 13.25 inches (W) x 13.25 inches (D) Weight: 11.5 pounds Electronics Condition: New Wireless Technology: No Wireless Technology Battery: No Battery Used Warranty: 1 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869