DriSentri 4-Channel Car Amplifier, 4 Channel Aluminum Power Car Audio Subwoofer Amplifier, Low Distortion Full Range Bridged Stereo Amp with Adjustable HPF LPF Crossover & Bass Boost

Two practical wiring configurations available: 4-Channel Stereo Mode independently drives four front & rear door full range speakers with 4~8 rated impedance; 2CH Bridged Mode combines paired channels to output higher power for passive subwoofer. Ideal for original speaker replacement or aftermarket bass upgrade to customize your car audio ^^ Compatible with Series, Parallel and Series Parallel speaker wiring to freely adjust total impedance. Works seamlessly with single & dual voice coil subwoofers, letting users configure load from 4 to 8 and effectively prevent overload damage, compatible with most aftermarket speakers and subwoofers ^^ Independent HPF/LPF crossover plus Bass Boost controls on rear panel: activate HPF(40Hz-500Hz) for full range speakers to block low-frequency crosstalk and improve mid-range clarity; apply LPF(40Hz-250Hz) with bass boost on bridged subwoofer channels for solid pure bass, improving the thin & muddy sound of audio ^^ Integrated full protection against overheat, short-circuit, overload and undervoltage. The amp automatically cuts off output for cooling under abnormal impedance conditions, paired with built-in fuse to protect vehicle battery, amp and speakers. Ultra-low 0.15 % THD and 90dB SNR delivers crisp distortion free audio ^^ Solid extruded aluminum heat sink optimizes heat dissipation during long-time continuous playback; compact footprint supports hidden interior installation. Operates on 9V~18V 12V vehicle power, perfectly suitable for Car, SUV, Truck, RV audio modification