Kicker 43CWRT101 10 800 Watt Dual Voice Coil 1-Ohm Car Audio Subwoofer;True shallow-mount subwoofer great for compact cars or even motorcycle saddlebags;Suitable for the trickiest installations;Large-diameter, progressive-roll spider;Inverted-bumped back plate and bumped top plate for full voice-coil clearance and excursion