Kicker 8 Weatherproof Tube Power Subwoofer Experience superior resonance with Tube Power subwoofers, an ultra-deep, impressively loud subwoofer system. Fit it easily in any preferred location on your Utv, Atv, or SxS, getting the powerful bass effect you desire without sacrificing any much-needed space. Features: Thick ABS tube construction Flexible horizontal or vertical mounting system Spring-Loaded speaker terminals CompR woofer and reflex sub Ceramic magnet Advanced heat management system Signature double red stitching Grilles included Specifications: Type: reflex Size (in., cm): 8, 20 Impedance (ohms): 2 Recommended Amplifier Power (watts Rms): 300 Peak Power (watts, per Ansi/Cta-2031-A): 600 Sensitivity (dB 1w/1m): 84.4 Box Bottom Depth (in, cm): 12-7/8, 32.8 Box Height (in, cm): Vert. Mount: 13-7/16, 34.1 Horiz. Mount: 8-5/8, 21.9 Box Width (in, cm): 8-1/2, 21.6 Includes: 1 - enclosure assembly 2 - vertical mounting brackets 1 - horizontal mount base 1 - Horizontal mount hook(retainer) 1 - Horizontal mount plate(retaining clamp) 7 - stainless steel M5 x 12mm button head screws for horizontal mount plate to base and mounting brackets to enclosure 11 - nylon flat washers (to be used on all mounting fasteners) 4 - stainless steel pan head phillips M4 x 25mm (for mount base to vehicle) 1 - owners manual 2 - Kicker stickers Note: Works best with 300 watts of recommended power