Compact, two-way speakers feature a vented port and bass reflex design to produce a full range of sound. The compact design allows for easy mounting without cutting holes, using the 360 deg. gimbal mounting brackets. Stainless steel grills, polypropylene cones, heavy-duty ABS housings and a non-corroding mounting brackets assure you of long-lasting waterproof and corrosion-proof performance. - Frequency Response: 60Hz to 20KHz (2 way) Peak Power: 100 watts per pair Impedance: 4 ohms Overall Dimensions: 7 1/2 x 4 15/16 x 4 15/16 (190mm x 125mm x 125mm)