Features:

GTA High Performance Series 4-channel car amplifier (CEA-2006 compliant) Bridged output power @ 4ohm: 160 watts x 2-channels 4/3/2 channel operation Boston¡¯s Q-Tune circuitry for Simple Bass Output Optimization SST(Symmetrical Signal Topology) system uses balanced asymmetrical inputs for noise cancellation Fully adjustable and selectable Lowpass/Highpass crossovers Wrap-around heatsink design for ample cooling in multiple mounting positions   3-way system protection circuitry : thermal, overload, and speaker short Dedicated High- (speaker level) and Low- (RCA) level inputs Optimal angled speaker and power blocks for easy wire connections IMS(Integral Mounting System) reduces the amplifier footprint Recessed control panel for clean installation and concealed wire management Gold-plated RCA and screw terminals Optional remote bass control: compatible with GTA-RSL remote (sold separately) Q-Tune control: adjustable highpass Q, 0.707 to 1.6 Specifications: AB Amplifier Class 4 Channels RMS output power @ 4ohm: 50 watts x 4-channels RMS output power @ 2ohm: 80 watts x 4-channels RMS Power Output @ 4 Ohms : RMS Power Output @ 2 Ohms : 80 watts x 4 Bridged RMS Power Output : 160 watts x 2 THD: 0.05% Signal-to-Noise Ratio (dB) : >90dB Frequency Response (Hz) : 10Hz - 50kHz Built-in Crossover : Low-Pass High-Pass High-Pass Crossover Frequency : 12dB Adj. 50Hz - 200Hz Low-Pass Crossover Frequency : 12dB Adj. 50Hz - 200Hz Bass Boost : 0-6dB Fuse Rating : 25A x 2 Dimensions (L x W x H) Inches : 14-3/4" x 2-3/8" x 8-3/8" (375 x 60 x 211mm) Approximate Weight : 10 Model Number : GTA-504 UPC Code : 690283478407 Internal SKU : BACGTA504 50 watts x 4