The completely redesigned amplifier assortment has been engineered for the discerning car audio enthusiast. Each amplifier uses a MOSFET power supply and low noise circuitry for the highest performance capabilities. Boasting 0-12dBA variable 45Hz bass boost, high and low level inputs, and five-way protection circuitry (thermal, short circuit, impedance, voltage, reverse polarity) these amplifiers are rock solid. The exterior features an illuminated logo badge and brushed aluminum heatsink which complement its sturdy aluminum side panels. The single sided connection layout makes it simple to adjust the system after installation. All EFX mono amplifiers feature an attractive remote level control with power LED.