Powerbass - PBM-600.4 - 75Watt x 4 (4 ohm), 150Watt x 4 (2 ohm) Mini Amplifier - Black/Gray

The Crunch CRA-1500.4 is a versatile 4-channel Class D amplifier built to deliver strong, efficient output while maintaining a compact footprint. Designed with a switch mode power supply (SMPS), it provides stable and reliable power regardless of battery voltage, helping prevent performance drops and protecting connected components from voltage fluctuations. With a maximum output of 1500 watts, this amplifier supports a wide range of system configurations. It produces 4 x 375 watts at 2 ohms and 4 x 185 watts at 4 ohms, and can be bridged to deliver 2 x 750 watts at 4 ohms. Multiple operation modes—including four-channel stereo, dual bridged, and mixed stereo/bridged setups—allow flexible system design for speakers and subwoofers. Audio performance is supported by a low-noise preamplifier circuit and SPEED-FET MOSFET output devices, helping reduce distortion while improving efficiency. The amplifier offers a frequency response of 10Hz to 30kHz and features adjustable 12dB per octave crossovers, with both high-pass and low-pass filters ranging from 40Hz to 400Hz for precise system tuning. Installation is straightforward with both RCA and high-level inputs, including auto turn-on capability for OEM integration. Nickel-plated terminals and screw-down connectors ensure secure, corrosion-resistant connections, while built-in LED protection diagnostics monitor overload and speaker faults for reliable long-term operation. Specifications: Type: Amplifier Class: Class D Channels: 4 Max Power: 1500W Power @ 2 Ohms: 4 x 375W Power @ 4 Ohms: 4 x 185W Bridged Power @ 4 Ohms: 2 x 750W Frequency Response: 10Hz – 30kHz Signal to Noise Ratio: -76.8dBA Total Harmonic Distortion: <1.0% High Pass Crossover: 40Hz – 400Hz Low Pass Crossover: 40Hz – 400Hz Input Sensitivity: 0.2V – 6V Inputs: RCA & High-Level Power Terminal: 4 AWG Speaker Terminal: 8 GA Fusing: External 60A

The Pioneer GM-DX874 four-channel amplifier will deliver up to 150 watts RMS to each of your front and rear speakers for powerful music. Highly efficient Class D technology keeps this powerful amp running as cool as it looks, and allows for a compact chassis that fits in a lot of out of the way spaces. The frequency response of this amplifier stretches up to 50,000 Hz, for Hi-Res Audio Certified playback. Pioneer uses high-grade electronic parts and gold-plated RCA connections to ensure maximum performance. Speaker-level inputs allow you to install this amp in a factory system with no RCA connections. The amplifier switches its input mode automatically when it detects the high-level signal, eliminating the need to run a turn-on lead to your receiver or fuse box. Built-in high- and low-pass filters let you adjust the sound for your vehicle's interior, whether you're driving speakers or subs.

Listen to your favorite Hi-Res music and podcasts with this Alpine four-channel amplifier. The Next-Generation R-Series Amplifiers are Hi-Res Audio Certified and able to reproduce up to 45kHz frequency response. This ultra-wide bandwidth brings music even closer to the original source while the classic R-Series design maintains the “loud and fun” performance quality that long-time fans have come to enjoy. The R2-A60F features a reduced footprint that’s 15% smaller than the previous model (R-A60F), making it easier than ever to install in most vehicle applications while still getting the same powerhouse performance.