Amplifier Mtx RT202 AUDIO just dirty but it works 37.5 watts RMS x 2 at 4 ohms 75 watts RMS x 2 at 2 ohms 150 watts RMS x 1 bridged output at 4 ohms stereo or bridged mono output (4-ohm stable in bridged mode) Tri-way capable (Tri-Way crossover required) 10-gauge power and ground leads recommended — wiring and hardware not included with amplifier selectable high-pass/low-pass crossovers (18 dB/octave at 85 Hz ) preamp outputs and inputs speaker-level inputs with SmartEngage (turns the amp on when it detects signal from the receiver) fuse rating: 20A x 1