Rockford Fosgate amplification at an unbelievable value, The R300-4 4-channel amplifier is so versatile it will be the only amplifier your system needs, Full-range or component speakers on the front channels & a single R1S410 10"" or R1S412 12"" woofer bridged/mono on the rear, Consider your system clean loud & done!, Check out our RFTECH:Woofer WiringWizard to get the most out of your amplifier, 12dB/octave crossover, 2/4 channel switch, 4 Gauge power/ground connections w/built-in ATC fusing, MOSFET output stage, MOSFET power supply, RCA pass-thru, Number of Channels 4, Rated Power, continuous power 50 Watts RMS x 4 @ 4-Ohms, 75 Watts RMS x 4 @ 2-Ohms, 150 Watts RMS x 2 @ 4-Ohms Bridged/Mono, Total Power, total sum of "rated power" 300 Watts, Dynamic Power, powercube measurement (info) Front Channels:, 62 Watts x 2 @ 4-Ohms 0° Res, 98 Watts x 2 @ 2-Ohms 0° Res, Front Channels:, 61 Watts x 2 @ 4-Ohms 0° Res, 89 Watts x 2 @ 2-Ohms 0° Res, Bridgeable Yes, Efficiency (average) 59% @ 4-Ohm, 49% @ 2-Ohm, Crossover Controls Front Channels, High-Pass (HP): 80Hz @ 12dB/octave Butterworth, Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth, Rear Channels, High-Pass (HP): 80Hz @ 12dB/octave Butterworth, Low-Pass (LP): 50Hz-250Hz @ 12dB/octave Butterworth, Tone Controls Front Channels, Punch Bass: 0dB/+6dB/+12dB @ 45Hz, Rear Channels, Punch Bass: 0dB/+6dB/+12dB @ 45Hz, Function works when crossover in (LP) position, Signal Input Low Level: 2 RCA pair, Signal Output n/a, Power Input Connector Screw terminal barrier strip, Power Wire Gauge 4 AWG, Speaker Output Connector Screw terminal barrier strip, Speaker Wire Gauge 8 AWG, Heat Sink Type Extruded Aluminum, Cooling Convection, Remote Controls n/a, Visual Indicators Power, Protect, Circuit Topology Class Class A/B, Frequency Response 20Hz to 20kHz +/-1dB, Shipping Weight TBA Lbs, (TBA Kg, ), Dimensions (HxWxL) 2, 40 x 7, 67 x 17, 09 (in), 6, 10 x 19, 49 x 43, 40 (cm SKU: TBAL7033