The Hertz HCP 4M is a compact 4‑channel marine amplifier engineered for corrosion‑resistant on‑board use, delivering clean power and flexible crossover control. Ideal for 12 V marine systems, it offers compact size and precise tuning for boat audio installations.

• IP Protection: IP64
• Supply Voltage: 11–15 V DC
• Fuse: 2 × 20 A
• Idle Power (on/off): 1 A / 0.4 mA
• Max Power Consumption: 21 A
• Size: 315 × 190 × 50 mm (12.4 × 7.48 × 1.97 in)
• RMS Output Power: 4 × 55 W (at 4 Ω)
• Crossover: fully adjustable low-pass and high-pass filters with 12 dB/Oct. and 24 dB/Oct. slopes
• Robust construction: extruded aluminium heatsink with side dissipation wings; balanced Pre-In and Speaker-In circuitry for EMI rejection
• Hertz HCP 4M Datasheet · HCP 4M Manual

See the datasheet for wiring and setup details.