Rockford Fosgate Punch P400X4 Amplifier

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External amplification is a vital component to improve the overall listening experience of a car’s mobile media setup. You might wonder if it is actually a must to splash the cash on a decent amplifier, and spend on quality speakers instead?

Truth be told, aftermarket amplifiers are in charge of enhancing the sound quality of other audio components such as the subwoofer, mid-bass, sub bass and tweeters. This reflects the importance of an amplifier’s function. Most aftermarket amplifiers are multi-channel, with each channel dedicated to drive one speaker each.

This drastically improves the punch out of each speaker. Rockford Fosgate’s Punch P400X4 amplifier is the perfect companion for this particular usage. Firstly, its RMS ratings are far more generous than its affordable price tag, with 50×4 at 4 Ohms and 200×2 at 4 Ohms/bridged. This four-channel amplifier also feeds 100 Watts into all four channels at 2-Ohm.


As such, the P400X4 is highly suitable for a 4-way full range system or a 3-way system comprising of a front stage with subwoofers on the rear channels. Features unique to Rockford Fosgate amplifiers and are generously furnished in this P400X4 include a 12dB/Octave “Butterworth crossover, cast aluminum heatsink and an on-board “Punch EQ” with +18dB boost at 45Hz. Despite packing plenty of features, it still maintains sleek aesthetics that appeals to all modern drivers. The top mounted control panel is cleverly hidden from sight to ensure a flushed appearance with the rest of the hardware. It far exceeds safety standards too – the P400X4 is fully protected against short circuit and over currents.

Rockford Fosgate has proven to be a mainstay in this highly competitive industry, although it is true that the market for amplifiers is becoming increasingly saturated. Despite intense competition, Rockford Fosgate can certainly hold its head high with the Punch P400X4 Amplifier that “punches” its weight further than key rivals!

RF Electronics – 9625 0930


About Author

Always finding ways to keep his hands full, Krado loves to tinker with his car whenever he has the free time. Usually ends in tears or a multiple fluid facial.

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