48PXA4004 400W 4-Channel Amplifier

The Kicker 48PXA4004 is a 4-channel Class-D amplifier built to survive life outside the cabin. With IP66 and IP67 waterproof certification, it handles rain, mud, and wash-downs without hesitation, making it a fit for ATVs, UTVs, RZRs, and other off-road builds where a standard amplifier would fail. The compact housing, 4-1/2 by 1-3/4 by 9-3/4 inches, tucks into tight spaces on hot rods and space-challenged vehicles alike, so mounting location stops being a constraint.

Power output runs 200W x 2 in 4-ohm mono mode, and 100W x 4 in both 2-ohm and 4-ohm stereo configurations, with 800W of Dynamic Power available when the music calls for a hit. High-efficiency Class-D circuitry keeps heat down and output up, backed by 80Hz and 120Hz high-pass and 80Hz low-pass crossovers at 24dB per octave for clean frequency splitting between speakers.

Setup is built to move fast: inline power and ground couplers eliminate soldering or crimping, and dual turn-on modes, DC offset or 12V trigger, mean it wakes up with whatever wiring the vehicle already has. Stainless-steel mounting hardware resists corrosion in wet, gritty environments, and the amp pairs with a CXARC remote, sold separately, for low-pass control from the dash. For anyone running speakers on a UTV, side-by-side, or off-road rig that needs real power without a fragile amp underhood, the PXA400.4 delivers.