Hertz
Hertz HMD1Mono Amplifier
HMD1 mono amplifier is the perfect solution to add one or more marine subwoofer to your vassel, being the ideal power extension of HMD8 DSP. At 1 Ohms it is stable and can supply up to 1000 W of power with extremely compact dimension.
Highlights
- ADVANCE D-CLASS
- CORROSION RESISTANT
- SALT FOG PROOF
- WATER JET TESTED
Key specs
Full specs- Channels
- 1
- Power supply voltage / fuse
- 11 ÷ 15 VDC / 2 x 30A
- Operating power supply voltage
- 6.5 ÷ 17 VDC
- Idling current
- 1.3 A
- Idling current off
- 0.05 mA
- Consumption @ 14.4 VDC, 2Ω, Max Musical Power
- 50 A
- Remote IN
- 6.5 ÷ 15 VDC (1 mA)
- ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable)
- 2 ÷ 7 VDC
Key specs
Full specs- Channels
- 1
- Power supply voltage / fuse
- 11 ÷ 15 VDC / 2 x 30A
- Operating power supply voltage
- 6.5 ÷ 17 VDC
- Idling current
- 1.3 A
Highlights
Overview- ADVANCE D-CLASS
- CORROSION RESISTANT
- SALT FOG PROOF
Overview
HMD1 mono amplifier is the perfect solution to add one or more marine subwoofer to your vassel, being the ideal power extension of HMD8 DSP. At 1 Ohms it is stable and can supply up to 1000 W of power with extremely compact dimension.
Highlights
Key features
- ADVANCE D-CLASS
- CORROSION RESISTANT
- SALT FOG PROOF
- WATER JET TESTED
Technologies

ADVANCE D-CLASS
Thanks to the Hertz advanced D-CLASS output stage, HMD1 joins maximum sound quality with unmatched efficiency to

CORROSION RESISTANT
Electronics components corrosion caused by exposure in wet environments is totally neutralized by the use of

SALT FOG PROOF
To satisfy the standards required by ASTM-B117, Hertz Marine products are tested with massive salt fog spray to

WATER JET TESTED
The protection grade IP64 defines all the Hertz Marine products as totally protected against water jets of
Specs
General Specs
16
| Channels | 1 |
| Power supply voltage / fuse | 11 ÷ 15 VDC / 2 x 30A |
| Operating power supply voltage | 6.5 ÷ 17 VDC |
| Idling current | 1.3 A |
| Idling current off | 0.05 mA |
| Consumption @ 14.4 VDC, 2Ω, Max Musical Power | 50 A |
| Remote IN | 6.5 ÷ 15 VDC (1 mA) |
| ART - Automatic Remote Turn on/off from OUTPUT BTL speakers (Selectable) | 2 ÷ 7 VDC |
| Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power | 0.1% |
| Damping factor @ 1 kHz, 4Ω, 2 VRMS | 140 |
| Bandwidth @ -1.5 dB | 10 Hz ÷ 500 Hz |
| S/N ratio (A weighted @ 1 V Input) Master Input | 110 dBA |
| Input sensitivity Pre-In | Selectable: 0.6 - 2.0 - 6.0 VRMS |
| Input sensitivity Speaker-In | Selectable: 2.0 - 6.5 - 20 VRMS |
| Minimum load impedance | 1Ω |
| Adjustable Crossovers | yes |
Output Power
4
| 1Ch @ 4Ω | 500 W |
| 1Ch @ 2Ω | 800 W |
| 1Ch @ 1Ω | 1000 W |
| Total Power | 1000 W |
INPUTS / FILTERS
2
| Pre-In Inputs | RCA |
| Speaker-In Inputs | Wired |
Physical Specs
2

| Max size W x H x D (mm/inch) | 243 x 48 x 159 9.56 x 1.8 x 6.25 |
| Weight (kg/lbs) | 1,98 (4.36) |
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