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the t400-2 is "one of the most impressive amps i've ever seen." says sergey of k&b audio. don't let its size fool you . this all mosfet amp packs enough power to run one 2-ohm dvc or two 4-ohm dvc subwoofers with ease and its dual function eq can tune-in any pair of high frequency component speakers to deliver premium sound quality. "the amplifier is without a doubt the most efficient class a/b amplifier i've ever tested." * 24db/octave crossover * 4 gauge power/ground terminals * audiophile grade speaker connections * mosfet output stage * mosfet power supply * rca pass-thru * cea-2006 compliant * number of channels 2 * rated power: continuous power 120w x 2 @ 4-ohms rms * 200w x 2 @ 2-ohms rms * 400w x 1 @ 4-ohms bridged rms * 2-ohms x 1 bridged stable * total power: total sum of 'rated power' 400 watts * dynamic power: powercube measurement (info) 145 watts x 2 @ 4-ohms 0 res * 243 watts x 2 @ 2-ohms 0 res * bridgeable yes * efficiency (average) 76% @ 4-ohm * 71% @ 2-ohm * crossover controls high-pass (hp): 50-500hz 24db/octave butterworth * low-pass (lp): 50-500hz 24db/octave butterworth * tone controls treble: 0db to +12db @ 12khz * bass: 0db to +18db @ 45hz * signal input low level: 1 rca pair * signal output low level: 1 rca pair * power input connector block * power wire gauge 4 awg * speaker output connector screw terminal barrier strip * speaker wire gauge 8 awg to 18 awg * heat sink type cast aluminum * cooling convection * remote controls optional remote punch eq; (overrides built-in punch eq) * visual indicators power; * thermal; * protect * circuit topology class class a/b * frequency response 20hz to 20khz +/- 1db * shipping weight 10.29 lbs.; (4.66 kg.) * dimensions (hxwxl) 2.14 x 8.14 x 11.41 (in); * 5.42 x 20.68 x 28.97 (cm)