The KICKER KXMA500.4 (OEM 48KXMA5004) is a genuine REAL MARINE™ 4-channel Class D amplifier built for harsh marine use, with key controls protected behind a gasket-sealed cover and marine-ready, corrosion-resistant hardware. It’s ideal for powering four full-range speakers, or for running two bridged channels when you need more output.

• Model: KXMA500.4
• RMS power: 75W x 4 @ 4Ω; 125W x 4 @ 2Ω; 250W x 2 bridged @ 4Ω
• Frequency response: 10Hz–20kHz (+0/-1dB)
• Signal-to-noise ratio: >95dB (A-weighted, re: rated power)
• Input sensitivity: High level 250mV–10V; Low level 125mV–5V
• Crossovers: Variable 24dB/oct (selectable high-pass/low-pass/off; band-pass available on amp 2)
• Bass boost: KickEQ™ variable 0–6dB @ 40Hz (amp 2)
• Key features: Gain control with “Gain Match” LED indicator, FIT2™ (Fail-safe Integration Technology), DSP-controlled preamp, full-range RCA output for easy amp expansion
• Marine construction: Conformal-coated circuit boards, stainless mounting hardware, anti-corrosive speaker/power/RCA terminals, ABYC/NMMA-compliant power connections
• Dimensions (H x W x L): 2-1/8" x 8-5/16" x 11-3/16"
• Remote: No wired remote included

Before ordering: confirm ratings, wiring requirements, and physical fitment for your specific boat and speaker load. If you’re unsure about channel bridging, impedance, or system matching, contact TMP Global for help.