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-1500.1 GP-2500.1 GP-3500.1D 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 Price $81.55$81.55 $87.59$87.59 $93.97$93.97 Channel 1 1 1 Max Power @ 1 Ohm no data no data 1x3500 Max Power @ 2 Ohm 1x1500 1x1500 1x1750 Max Power @ 4 Ohm 1x750 1x750 1x875 Max Power @ 4 Ohm Bridged no data no data no data Fuse Rating 25A x 2 30A x 2 30A x 2 Wire Bass Remote ✓ ✓ ✓ Product Dimensions 10 × 8 × 2.375 in 10.75 × 8 × 2.375 in 11.5 × 8 × 2.375 in