BOSS Audio OX4.400 4 Channel Car Amplifier, MOSFET Power, Bridgeable — 400 Watts Max x 4 @2-Ohms / 800 Watts Max x 2 @4-Ohms / 1600 Watts Max x 1 Bridged @4 Ohms

The BOSS Audio OX4.400 is a MOSFET-driven 4-channel car amplifier built to power both speakers and subwoofers with flexible channel configurations. Power Ratings: 400 Watts Max x 4 @2-Ohms, 800 Watts Max x 2 @4-Ohms, 1600 Watts Max x 1 Bridged @4 Ohms. Class A/B Topology: This amp uses Class A/B design. Class ‘A’ operation keeps a substantial current flowing through the output transistors even with no input signal, while Class ‘B’ has no idle current through the outputs. The combined topology balances audio performance and efficiency. Full Range Capability: As a full-range amplifier, the OX4.400 can drive your main speakers and is also suitable for powering subwoofers when configured accordingly. Bridgeable Design: Channels can be bridged to significantly increase the power delivered to a speaker or subwoofer by combining two amplifier channels. Low-Pass Crossover: Includes a low-pass crossover so you can set precise bass frequency limits for optimal subwoofer reproduction.