Intended to enhance your in-car audio, the GM-A4704 is a 4-channel bridgeable amplifier that automatically selects the proper input signal mode, either RCA or speaker level.
SPECIFICATIONS GENERAL RCA Inputs: 4-CH Amplifier Class: Class AB Hi-Res Certified: No Bridgeable: Yes Warranty: 1 Year Speaker Level Input: Yes Fuse Rating: 30A x 1 Bass Boost Remote: No Automatic Signal Sensing and Turn-On: Yes Hi-Volt Input Level Control: 0.3V to 6.5V (RCA in), 3.0V to 26V (SP in) Terminal Type: Screw Load Impedance Allowance (Ohms): 2 to 4 Protection Control System: Yes Dimensions: 326(W) X 60(H) X 215(D) mm POWER Continuous Power (RMS) Output @ 1Ω: N/A Continuous Power (RMS) Output @ 2Ω: 65W x 4 Continuous Power (RMS) Output @ 4Ω: 40W x 4 Continuous Power (RMS) Output - Bridged @ 4Ω: 130W x 2 AUDIO ADJUSTMENTS Low-Pass Crossover Frequency: 80 Hz Low-Pass Slope (dB/octave): -12db/oct (A/B CH) High-Pass Crossover Frequency: 40 Hz to 500 Hz Bass Boost Frequency: 50Hz Bass Boost Level: 0/6/12dB AUDIO SPECIFICATIONS Frequency Response: 10Hz ~ 70kHz (+0dB , -3dB) Total Harmonic Distortion (THD): <0.05% ( 10W, 1kHz) Signal-to-Noise (SN) Ratio: >94dB