Hertz HMD1 24V

Hertz HMD1 24V – 1-Channel Marine Mono Amplifier with up to 1000 W at 1 Ω

The Hertz HMD1 24V is a 1-channel marine amplifier specially designed for 24V marine electrical systems. It effortlessly powers one or more marine subwoofers – in a compact design and with high control down to 1 Ω load stability. In combination with the HMD8-DSP, you can specifically expand your setup with powerful subwoofer drive.

Technical Highlights

• Channels: 1 (Mono), stable power down to 1 Ω
• Adjustable Crossovers: yes
• Bandwidth (−1.5 dB): 10 Hz – 500 Hz
• Total Harmonic Distortion (THD) @ 1 kHz, 4 Ω, 70% Rated Power: 0.1%
• Damping Factor @ 1 kHz, 4 Ω, 2 VRMS: 140
• Signal-to-Noise Ratio (A-weighted @ 1 V Input): 110 dBA
• Input Sensitivity Pre-In (switchable): 0.6 / 2.0 / 6.0 VRMS
• Input Sensitivity Speaker-In (switchable): 2.0 / 6.5 / 20 VRMS
• Minimum Load Impedance: 1 Ω

Output Power

• 1 × 500 W at 4 Ω
• 1 × 800 W at 2 Ω
• 1 × 1000 W at 1 Ω
• Total RMS Power: 1000 W

Power Supply & Control

• Supply Voltage (nominal range) / Fuses: 22–34 VDC / 2 × 15 A
• Operating Range Supply: 14–36 VDC
• Idling Current: 0.7 A
• Idling Current Switched Off: 0.07 mA
• Current Consumption @ 14.4 VDC, 2 Ω, max. Music Power: 25 A
• Remote IN: 6.5–34 VDC (1 mA)
• ART Auto-Remote via BTL Speaker Output (selectable): 2–7 VDC

Connections

• Pre-In: RCA
• Speaker Inputs: wired (High-Level)

Dimensions & Weight

• Dimensions (W × H × D): 243 × 48 × 159 mm
• Weight: 1.98 kg

Installation & Compatibility

The HMD1 24V is designed for 24V marine electrical systems and is ideal for low-impedance subwoofer setups. Thanks to its compact design, it also fits into tight boat installations. You can integrate it flexibly via Pre-In and High-Level inputs. As a mono power amplifier, it optimally complements systems with the Hertz HMD8-DSP if you specifically want more bass pressure.