DS18 Audio - FX 4-Channel Class D Car Amplifier with Marine Rating, 4 x 180W RMS at 4 Ohm - Black
Model: FX4
SKU: 13007619
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The FX4 is a 4-channel car amplifier from the DS18 FX series, built as a Class D design. It delivers 4 x 180 watts RMS at 4 ohms. Total harmonic distortion is rated at 0.15% with a signal-to-noise ratio of 87dB. A selectable LPF/HPF/FULL crossover covers 40Hz-2KHz, so you can send each channel only the frequencies it should reproduce. Bass boost is adjustable from 0~12dB centered between 50Hz. Marine-grade construction makes it suitable for boats, side-by-sides and powersports vehicles. Match the amplifier to the RMS rating of your speakers or subwoofers and set the gain to that rating for clean, reliable output.
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Delivers 4 x 180 watts RMS at 4 ohms. Power scales as impedance drops, so check the rating at the impedance you plan to run before matching speakers.
A Class D topology runs cooler and draws less current than a conventional amplifier at the same output, with rated efficiency of 79%. That means less strain on your electrical system and a smaller chassis for the same power.
Marine-grade construction protects the amplifier from water, spray and humidity in open-air installs. Mount it where a standard car amplifier would not survive.
Onboard tuning includes a selectable LPF/HPF/FULL crossover covering 40Hz-2KHz and bass boost adjustable from 0~12dB centered between 50Hz. Send each channel only the frequencies it should play and dial in the low end without adding an external processor.
Built with thermal, over-load, dc output and short circuit output protection, so the amplifier shuts itself down before a wiring fault, a short or overheating can damage it or your speakers. That is what keeps 4-channel amplifiers alive in daily-driven vehicles.