Hertz HMR 20 Marine Head Unit – Bluetooth, USB & AM/FM
The Hertz HMR 20 is a marine-grade digital media receiver designed to deliver reliable audio performance in demanding marine environments. Featuring a 3-inch full-colour TFT IPS display, Bluetooth 5.0 audio streaming, USB connectivity and AM/FM radio with RDS, the HMR 20 provides convenient control and connectivity on the water. Its marine-grade construction includes IP66 protection, UV resistance and salt-fog resistance, making it well suited to boat installations.
Features:
Marine-grade digital media receiver
3-inch full-colour TFT IPS display
Display designed to remain visible during daytime use
Large buttons for easy operation while underway
Bluetooth 5.0 audio streaming with ID3 tag display
USB 2.0 connectivity
AM/FM tuner with RDS where available
DAB+ Ready with optional HMB DAB+ module
Two independently controlled audio zones
Four EQ presets
Multicolour button illumination
Battery voltage gauge
IP66 front-panel protection
ASTM-D4329 tested for UV resistance
ASTM-B117 tested for salt-fog operability
Dedicated subwoofer output
Auxiliary RCA input
Designed specifically for marine environments
Ideal For:
Boat and marine audio installations
Fishing boats
Cruising and recreational vessels
Cockpit and cabin audio systems
Boats requiring independently controlled audio zones
Specifications:
Brand: Hertz
Model: HMR 20
Product type: Marine digital media receiver
Display: 3-inch colour TFT IPS
Display resolution: 640 × 360 pixels
Peak power: 4 × 50W @ 4O
Speaker impedance: 4–8O per channel
Multi-zone: 2 zones
Bluetooth: Version 5.0
USB: USB 2.0
Tuner: AM/FM with RDS where available
DAB+: Ready – optional HMB DAB+ module required
Line outputs: 2 × L+R, one per zone
Subwoofer output: 1 × RCA
Subwoofer crossover: 80Hz, 120Hz or 160Hz
AUX input: 1 × stereo RCA
EQ: 4 presets
Battery voltage gauge: Yes
Front panel protection: IP66
Unit dimensions: 146W × 105H × 121D mm
Mounting depth: 99mm
Mounting hole size: 122W × 52H mm
Weight: 0.83kg
Mounting method: Screw
Power supply: 12V DC
Allowable voltage: 10–16V DC
Operating temperature: -20°C to 70°C
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