FEATURES:* Class A/B Circuitry* 2 Ohm Load Stereo Capability* Audiophile Grade Components* Variable Low/ High Pass Crossover* High Efficiency Mosfet Design* QSINK Heat Management SystemSPECIFICATIONS:* 4 x 160 Watt @ 4 Ohm Stereo* 4 x 320 Watt @ 2Ohm Stereo* 2 x 640 Watt @ 4Ohm Bridged* X-Over Slope: 12dB* Bass Boost @ 45Hz* Input Sensitivity: 285Mv – 6V* Signal to Noise Ratio >90dB* THD at Rated Power <0.5%DIMENSIONS:* Length: 11.73” / 298mm* Width: 9.54” / 242.35mm* Height: 1.96” / 50mm