SX-4100.4ABSoundmax SX-41004 CHANNEL AMPLIFIER4X1004 ohmMAX POWER 5000W KEY FEATURES?4 x 100 WATTS MAX POWER?4,3 OR 2 CHANNEL BRIDGEABLE ?THERMAL/SHORT-CIRCUIT/OVERLOADING PROTECTION?HIGH EFFICIENCY MOSFET POWER SUPPLY?VARIABLE BASS BOOSTER?VARIABLE LOW PASS & HIGH PASS CROSSOVER?POWER ON & PROTECTION LED INDICATORS?EXTRA HEAVY HEAT SINK FOR BETTER HEAT DISSIPATIONSPECIFICATIONS?4 OHM 100Wx4