Ideal for use in a larger scale venue, this 15" subwoofer provides high SPL level and low frequency levels. Recessed handles 1 3/8" diameter pole mount on top of cabinet Metal grills Heavy duty stamped frame woofer Treated paper cone Treated cloth accordion surroundSpecifications: Impedance: 8ohm Power Handling:350W RMS, 700W peak Frequency Response: 20Hz~500Hz SPL: 91dB Dimensions: 20" (H) x 18" (W) x 17" (D) Inputs: ¼" input connection as well as binding posts