Low Noise Preamplifier Circuit - Maximum low voltage signal from the source unit comes into the amplifier through a low voltage circuit which delivers minimal distortion through the amplification process. RCA Inputs - Nickel-Plated RCA jacks that create the best connection to prevent interference and minimize distortion in the signal path.. Hi Level Inputs - Easily tie into OEM audio systems that do not offer RCA outputs. Crossover Type - Variable Electronic Crossover - 12dB Per Octave Output Device Technology - Exclusive Crunch SPEED-FET MOSFET components maximize power efficiency while improving sound quality and minimizing distortion. Heat Sink - QTD Technology Aluminum: Quick Thermal Dispersion Technology assures additional mass in the aluminum heat sink keeps the amplifier running cool with nearly undetectable distortions during normal music listening. Power Supply - High energy Pulse Width Modulated Power Supply delivers power with minimal impact on the electrical system. Electronic Equalizer - Control of amplifier output with on board electronic crossover to tailor specific frequencies to speakers and subwoofers. Output Connections - Nickel Plated Brass Connection with terminals allow for secure connection while resisting corrosion. Connection Type - Screw Down Connectors: Easy access for hand tool allowing a quick and secure connection. LED System Protection Circuitry Diagnostics - Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel. GP-1000.2 GP-1000.4 GP-1500.2 GP-1500.4 GP-2000.2 GP-2000.4 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 3.8 out of 5 stars 1,275 3.8 out of 5 stars 1,275 3.8 out of 5 stars 1,275 3.8 out of 5 stars 1,275 3.9 out of 5 stars 363 3.8 out of 5 stars 1,275 Price $47.70$47.70 $65.48$65.48 $55.92$55.92 $67.79$67.79 $68.01$68.01 $82.99$82.99 Channel 2 4 2 4 2 4 Max Power @ 1 Ohm no data no data no data no data no data no data Max Power @ 2 Ohm 2x500 4x250 2x750 4x375 2x1000 4x500 Max Power @ 4 Ohm 2x250 4x125 2x325 4x185 2x500 4x250 Max Power @ 4 Ohm Bridged 1x1000 2x500 1x1500 2x750 1x2000 2x1000 Fuse Rating 20A 30A 25A 40A 30A 30A x 2 Wire Bass Remote no data no data no data no data no data no data Product Dimensions 8 × 8 × 2.375 in 10 × 8 × 2.375 in 8.75 × 8 × 2.375 in 10.75 × 8 × 2.375 in 9.5 × 8 × 2.375 in 11.5 × 8 × 2.375 in