400 x 1 @ 4 Ohms700 x 1 @ 2 Ohms1100 x 1 @ 1 OhmFuses: Remote bass knob Heavy Aluminum Heatsink for Excellent Heat Dissipation Military Grade PCB NGSD - Next Generation Super D-Class Technology For Increased Effi ciency on Mono Models Ultra-Fi Mosfets for low THD & Noise SPC - Simpatico Coil Design HSMD - Hifonics Surface Mount Design Brutus EXVP (Exponential Vari-Power Supply) Fully Adjustable Accu-Cross Crossover Permits Full Adjustment of Bass EQ, Subsonic Filter, Low Pass and Phase Shift Features LED Diagnostic Indicators 4-Way Protection Low Level RCA Inputs & Outputs Balanced Input for Line Drivers on Mono ModelsDimensions: 10 1/2"L x 2 1/2" x