CT Sounds Meso 8 Inch Car Subwoofer 800w RMS Dual 4 Ohm Double stitched treated paper cone Composite foam 2.5" Dual voice coil Mounting depth 6.6" Grade Y35 magnet 1 x Meso 8&#034; D4 Car Audio Power Subwoofer (Dual 4 ohm) Sub power: <span class="a-text-bold">800W (RMS) | 1600W (MAX) </span> Sub size: 8&#034; Sub type: Dual 4 ohm Voice coil (dia): 2.5&#034; / 63.5mm FS: 41.458 Hz QTS: 0.439 QES: 0.477 QMS: 5.601 VAS: 7.431 liters SPL: 82.80 dB (@1w/1m) Xmax: ~30mm (Peak to peak) Displacement: 0.08 cu. ft. Magnet weight: 160 Oz Speaker connector: 12 AWG Resonant frequency: 30.5 Hz Dual 4 (ohm) voice coil car subwoofer This car power sub is rated at 800W (RMS) | 1600W (MAX) Prudent 2.5&#034; (dia) voice coil Incorporates powerful Y35 triple stacked ferrite magnet Composite foam surround for easy and better subwoofer flex Quality paper cone which prolongs subwoofer longevity Double stitched paper cone with foam surround This sub holds on an aluminium basket that lowers the subwoofer weight while working as a very strong skeleton