400 Watt 4-Channel Amplifier

The Rockford Fosgate PM400X4 is a 400 Watt, 4-channel amplifier engineered for demanding motorsport and marine environments. It utilizes advanced Class-A/B topology for high dynamic power and exceptional sound quality, with a conformal coated PC board to protect against dust, UV, temperature, water, corrosion, and vibration, aligning with Rockford Fosgate's Element Ready™ standard. This amplifier is ideal for versatile audio configurations, including 4-way front-stage/rear-fill or 3-way front-stage/subwoofer systems. It offers an on-board Punch EQ with up to +18dB boost at 45Hz and 12dB/octave Butterworth crossovers (high-pass/low-pass/all-pass) adjustable from 50Hz to 250Hz, allowing for precise audio tuning. Features like C.L.E.A.N. Set-up with input/output clip LEDs, muted turn-on, and high-level input capability with an Auto Turn-On circuit facilitate easy integration and optimal performance. Built with a cast aluminum heatsink and Dynamic Thermal Management (DTM), the PM400X4 efficiently dissipates heat. It also includes protection features such as over current, short circuit, and NOMAD (real-time analog computer) to safeguard against speaker wire shorts and low impedances. The amplifier is CTA-2006 compliant, ensuring its power ratings are accurate. Specifications include 50 Watts RMS x 4 @ 4-Ohm, 100 Watts RMS x 4 @ 2-Ohm, and 200 Watts RMS x 2 bridged @ 4-Ohm. It operates on a 9-16 VDC range and requires an 8 AWG to 4 AWG power wire gauge and a 60A recommended fuse. The unit dimensions are 2.38" x 7.76" x 11.03".