The Kicker KXMA400.4 is a genuine 4-channel, full-range Class D marine amplifier designed for high-output sound in harsh environments. With gasket-sealed connections and a sealed control cover, it’s ideal for powering boat cabin speakers, tower speakers, or a 4-speaker system with clean, efficient power.

• OEM / MFR ref: 44KXMA4004 (KXMA400.4)
• Total power class: 400W 4-channel full-range Class D
• RMS power @ 14.4V (≤1% THD+N): 50W x 4 @ 4Ω, 100W x 4 @ 2Ω, 200W x 2 bridged @ 4Ω
• Minimum impedance: 2Ω stereo / 4Ω bridged
• Frequency response: 10Hz–20kHz
• Selectable crossovers: Amp 1 OFF/HP/LP (10–5,000Hz with x10 switch); Amp 2 OFF/HP/LP/BP (HP 10–500Hz, LP 40–5,000Hz with x10 switch), 24dB/octave
• Bass boost: KickEQ+™ 0–18dB @ 40Hz
• Marine-ready construction: conformal-coated circuit boards, ABYC/NMMA-compliant power terminals, stainless mounting hardware
• Dimensions (L x W x H): 11-3/16in x 8-5/16in x 2-1/8in (284 x 210 x 55mm)
• Wiring guidance (per Kicker manual): 4 AWG power/ground and a 100A external fuse recommended; compatible KICKER installation kits: PK4 / CK4
• Integration note: RCA inputs can accept high- or low-level signal using an optional KICKER KISL speaker-to-RCA adapter

Before ordering: confirm system impedance, wiring, and available mounting space. If you’re unsure which speakers/subwoofers or wiring kit best match this amplifier, contact TMP Global for fitment support (supplier: Recmar).