The 8W7 offers a free air resonance of 35.2 Hz and a thermal power handling of 500 W, the lowest in the series. The 8W7 offers between 125 to 500 watts of power. Operation over 500 watts is not recommended for this model and voids the warranty. To go up to 750 Watts, try the 10W7 model, for 1,000 Watts the 12W7 model and for 1,500 Watts, look at the 13W7 model. A detailed product manual is included with the subwoofer, along with a visual installation guide. Online tutorials provide step by step instructions on the wiring and installation of the subwoofer.