Check the listing for details. Memphis Audio PRX624 6.5" Selectable 2- or 4-ohm ComponentSub. Condition: New. Listed at 69.95 USD. Product highlights6-1/2" component subwoofer selectable 2- or 4-ohm impedance treated paper cone with double-stitched butyl rubber surround power handling: 150 watts RMS (300 watts peak) frequency response: 50-150 Hz sensitivity: 82 dB top-mount depth: 3.05" cutout diameter: 5.753" sealed box volume: 0.35 cubic feet ported box volume: 0.5 cubic feet grille not included warranty: 1 year What's in the boxOne subwoofer Rubber trim ring/gasket (installed) One 4-ohm jumper wire (installed) Two 2-ohm jumper wires Specification sheet Warranty information About this itemWritten by Crutchfield's Bob BihlmayerLittle big boom Memphis Audio built their Power Reference Series subwoofers to bring strong low-frequency punch into your vehicle. The PRX624 6-1/2" subwoofer delivers big bass and high output in a small package, with a heavy-duty suspension that allows this sub to handle up to 150 watts RMS. Easy to set up, easy to love This Power Reference Series subwoofer is built to dish it out and take it. Its treated paper cone and double-stitched butyl rubber surround pump out the lows with toughness and precision. Improvements to the coil and suspension design give you even more of that great Memphis sound. Selectable Impedance Technology allows you to select 2- or 4-ohm impedance using the included color-coded jumpers, making adjustments dead easy and giving you a wide range of installation and system options. Do you hear a rumble in the distance? That's the bass you've been waiting for on its way to you from Memphis Audio.