The New Power Acoustik RZR4-1500D 4-Channel Class D Full Range Amplifier<p>We’re in a time where small is “in.” Smaller, more economical vehicles are more and more desirable. But that doesn’t mean you have to sacrifice big power for your system. Razor amplifiers pack huge power into small chassis thanks to efficient Full-Range Class D topology and SMT circuitry. Complimented with every possible preamp adjustment, Razor amplifiers leave nothing to be desired. Compact 4.75” Chassis Design for Installation Versatility. Install the Razor 4-channel class-D amplifier virtually anywhere in your car, truck, or SUV. This amp pumps out maximum power in a compact size. Thanks to the simple car stereo integration capability, Razor amplifiers can connect to a factory or upgraded car stereo. This Razor amplifier can automatically detect the sound signal from your stock radio and turn itself on and off. (Hi-Level Input only)</p>