Rockville RXM-M10 1200 Watt/600w RMS Marine/Boat Mono 1 Ohm Amplifier Amp New Rockville RXM-M10 1200 Watt Peak/600w RMS Marine Class D Mono Block Amplifier. CEA Compliant Power Ratings: 1 Ohm: 300 Watts x 1 Channel &lt;1% THD+N. 2 Ohm: 200 Watts x 1 Channel &lt;1% THD+N. 4 Ohm: 150 Watts x 1 Channel &lt;1% THD+N). RMS Power Ratings: 1 Ohm: 600 Watts x 1 Channel. 2 Ohm: 400 Watts x 1 Channel. 4 Ohm: 300 Watts x 1 Channel. Peak Power: 1 Ohm: 1200 Watts x 1 Channel. 2 Ohm: 800 Watts x 1 Channel. 4 Ohm: 600 Watts x 1 Channel. High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors. Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Low Pass 50Hz - 250Hz. Subsonic Filter 15Hz - 55Hz. Fully Adjustable 12dB Bass Equalizer. RCA Preamp Line Output. Phase Control Switch. Mute and Delay Soft Start System. Full IC-Controlled Protection Circuitry. Remote Dashboard Subwoofer Control. Now exclusively with &quot;Professional Peak limiter Circuitry&quot; which guarantees distortion free musical playback at all levels. 8 Volt Preamp Circuitry. Status Mode LED Indicator. Minimum THD @ Rated Power: &lt;0.05%. Frequency Response: 10Hz - 500KHz. Sensitivity: 100dB @ 1w / 1m. Damping Factor: &gt; 220 @ 100Hz. 50 Amp Maxi Fuse. Dimensions: ( W x H x L ) 8.5&quot; x 8&quot; x 16.1&quot;.