Product Description The Genius Audio ZR150.4D is a compact 4-channel Class D full-range amplifier designed for powerful and efficient car audio systems. It is stable at 2 ohms stereo and can also operate in 4-ohm bridged mode, making it a flexible choice for powering mids, highs, component speakers, or multiple speaker configurations. The ZR150.4D delivers up to 510 watts RMS x 2 bridged at 14.4V, while its adjustable high-pass and low-pass crossover network provides tuning flexibility from 40 Hz to 3 kHz. Its heavy-duty aluminum heat sink and integrated protection circuitry help maintain reliable performance in demanding installations. Main Features Feature Specification Product Type 4-Channel Full-Range Amplifier Model Genius Audio ZR150.4D Amplifier Class Class D Channels 4 Minimum Stereo Impedance 2 Ohms Minimum Bridged Impedance 4 Ohms Crossover Modes LPF / HPF / FULL HPF Range 40 Hz – 3 kHz LPF Range 40 Hz – 3 kHz Crossover Slope 12 dB Input Sensitivity Low: 0.3–9.5 V / High: 1.6–27 V LED Indicator Power / Protection Heat Sink Heavy-Duty Aluminum Finish Black Aluminum Power Output Power @ 14.4V Configuration RMS Power 4 Channels @ 4 Ohms Stereo 165 W x 4 4 Channels @ 2 Ohms Stereo 265 W x 4 2 Channels @ 4 Ohms Bridged 510 W x 2 4 Channels @ 2 Ohms Stereo — Burst 305 W x 4 Electrical Specifications Specification Rating Minimum Supply Voltage 8 V Maximum Supply Voltage 16 V Idle Current @ 12.6V 0.8 A Maximum Musical Consumption @ 12.6V 45 A Maximum Sinusoidal Consumption @ 12.6V 90 A Recommended Fuse 60 A Recommended Minimum Battery 70 Ah Dimensions Measurement Imperial Metric Length Approx. 10 1/4 in 26.0 cm Width 4 1/4 in 10.8 cm Height Approx. 1 3/4 in 4.5 cm Complete Dimensions 10 1/4 × 4 1/4 × 1 3/4 in 26.0 × 10.8 × 4.5 cm