Rockville RXM-S30 Micro Marine/ATV Amplifier 2400w Max 4 Channel 4x150/CEA Rated Rockville RXM-S30 2400 Watt 4 Channel Proton Micro Marine Car Amplifier. CEA Compliant Power Ratings: 400 Watts (4 x 90 Watts) at 4 ohms and 1% THD+N. 600 Watts (4 x 150 Watts) at 2 ohms &lt; 1% THD. 600 Watts (2 x 300 Watts) bridged @ 4 Ohms &lt; 1% THD. RMS Power Ratings: 800 Watts (4 x 200 Watts RMS) @ 4 ohms. 1200 Watts (4 x 300 Watts RMS) @ 2 ohms. 1200 Watts (2 x 600 Watts RMS) @ 4 ohm Bridged. Peak Power: 2400 Watts (2 x 1200 @ 2 ohms or 1 x 2400 @ 4 Ohms). Marine amplifier with conformal coated PCB board. High-Speed MOSFET Power Supply. Studio-Grade Bipolar Output Stage Transistors. Double Sided Surface Mount (SMD) PCB Design. Selectable +6dB/+12dB Bass Equalizer @ 45hz. Channel Separation: 50 dB. Current drawn @ MAX RMS output: 27A @ 4ohm, &nbsp;40A @ 2ohm. Efficiency @ MAX RMS output: 65% @ 4ohm, 60% @ 2ohm. 2-Ohm Stable Stereo. 4-Ohm Mono Bridgeable. 3 Channel Mixed-Mono Capable. Input sensitivity: 20mV-6V. Mute and Delay Soft Start System. Full IC-Controlled Protection Circuitry. 2 CH / 4 CH Input Mode Switch. RCA Preamp Line Output. 8 Volt Preamp Circuitry. Status Mode LED Indicator. 4 Gauge Lucite Encapsulated Power/Ground Terminals. 12 Gauge Lucite Encapsulated Speaker Terminals. THD+A: 0.01%. Frequency Response: 15Hz - 20KHz. Continuously Fully Adjustable 12dB / Octave Crossover with Differential Circuitry. Continuously Fully Adjustable High Pass Crossover: 50HZ &ndash; 250HZ. CH1 &amp; CH2 High Pass 50Hz - 250Hz. CH3 &amp; CH4 Low Pass 50Hz - 250Hz. CH3 &amp; CH4 High Pass 50Hz - 250Hz. Full Adjustable Crossover Controls: low pass, high pass, and full pass. Sensitivity: 100dB @ 1w / 1m. S/N Ratio: &gt;90dB. Damping Factor: &gt; 200 @ 100Hz. 2 x 30A Fuses. 7 LBS. Dimensions: (W x H x L) 6.7&quot; x 1.98&quot; x 12.28&quot;.