Frequency Response(Hz) 30-500 Peak Power Handling(Watts) 350 Continuous Power Handling(Watts RMS) 175 Kicker 10 Inch LED Marine Subwoofer in White (Qty 2) 2 Ohm Bundle 4 Ohm each-Bundle Includes: (2) Kicker KMF10 10-inch (30cm) Weather-Proof Subwoofer for Freeair Applications 4-Ohm, and (2) Kicker KMG10 10-Inch (30cm) Grille for KM10 and KMF10 Subwoofer, LED, White KICKER KMF 10-inch Marine Subwoofer Specifications Woofer(in,mm) 10, 25 Impedance (OHMS) 4 SVC Peak Power Handling(Watts) 350 Continuous Power Handling(Watts RMS) 175 Sealed Enclosure Volume Min-Max(ft³, L) 1-2.4, 28.3-68 Vented Enclosure Volume Min-Max(ft³, L) 1.25-1.75, 35.4-49.6 Frequency Response(Hz) 30-500 Mounting Depth(in, cm) 5, 12.7 Hole Diameter(in, cm) 9-3/16, 23.2 Outer Diameter(in, cm) 10-11/16, 27.1 Kicker KMG10 10-Inch (30cm) Grille for KM10 and KMF10 Subwoofer, LED, White Due to continual developement, product, and specifications are subject to change without notice. Stillwater Designs and it's agents are not responsible for typographical errors.