Pioneer GM-DX874 4 Channel Amplifier | 1200W Class D | Bridgeable w/ Bass KnobElevate your in-car audio with the Pioneer GM-DX874, a versatile 4-channel Class D amplifier. Delivering up to 150 watts RMS per channel, this amp powers your front and rear speakers with rich, dynamic music. Its efficient Class D technology ensures cool operation and a slim, compact design for easy installation in various spaces. The amp boasts a wide frequency response up to 50,000 Hz, making it Hi-Res Audio Certified for exceptional sound quality. Additional features include bridgeability for versatile setup options and bass control for precise sound tuning. With a range of total wattage options from 100 to 1,200 watts, the GMDX874 is an excellent choice for audiophiles seeking high-quality, powerful, and adaptable car audio amplification. Pioneer 4-channel car amplifier — 100 watts RMS x 4100 watts RMS x 4 at 4 ohms (150 watts RMS x 4 at 2 ohms)300 watts RMS x 2 bridged at 4 ohms (250 watts RMS x 2 bridged at 2 ohms)dimensions: 10-3/8"W x 2-3/8"H x 7-7/8"Dpreamp inputs and outputsgold-plated RCA connectionsspeaker-level inputs via supplied RCA-type adapterssignal-sensing turn-on with speaker-level inputsGM-DX874 Details:GM Series Class D 1 ohms Stable 4-Channel AmplifierRMS Power Rating:4 ohms: 100 watts x 4 channel2 ohms: 150 watts x 4 channelBridged: 300 watts x 2 channel @ 4 ohmsTotal power output: 600 wattsLED Power/Protect LightWired bass level remote control includedSpeaker-level (high-level) inputs (Includes adapter)1 pair of pre-amp outputsSignal sensing remote turn-on3-way protection circuitry (thermal, overload, and speaker short protection)High quality textured flat panel and tough frameHi-Res Audio certifiedCTA-2006 compliantInput sensitivity:Low level: 200mV - 6.5 voltsHigh level: 800mV - 16 voltsFrequency Response: 10 - 50000 HzTotal Harmonic Distortion (THD): 1%Signal to Noise Ratio: 75 dBVariable high-pass filter: 40 - 500 HzVariable low-pass filter: 40 - 500 HzVariable Bass Boost: 0 - 18 dBFuse Rating: 60A4 AWG gauge amplifier wiring kit is recommended for installationDimensions: 10-7/8" L x 8-1/2" W x 2-3/8" HUPC884938421843