Description
Hertz HMP 4D amplifier
4-channel amplifier intended for boat use, ATVs, etc
Hertz HMP 4D is a compact amplifier designed for boats. Thanks to the very compact IP64 rated aluminum outer shell, the Hertz HMP 4 D is protected from the elements, making it an ideal amplifier for boats, ATVs and motorcycles. The amplifier is equipped with a great size-to-power ratio and its commissioning is easy thanks to the integrated crossover filter. The distribution filter can also be bypassed, so it can be used with an external processor and handle filters and other adjustments from its end.
The signal inputs are equipped with a balanced circuit, which is why the amplifier rejects external magnetic fields very effectively, thus ensuring an interference-free end result. The general level of the amplifier can be adjusted either directly from the amplifier, sound source or processor.
1. The Hertz Pure Marine Certified Product model marking means IP65 protection rating, UV protection according to the ASTM-D4329 standard and salt spray protection required by the ASTM-B117 standard.
Characteristics
1. The Hertz Pure Marine Certified Product model marking means IP65 protection rating, UV protection according to the ASTM-D4329 standard and salt spray protection required by the ASTM-B117 standard.
2. The compact die-cast aluminum housing is IP64 rated.
3. The Bass Boost function can be adjusted by the user to support the lowest frequencies.
4. A complete splitter allows for easy commissioning and flexible installation.
5. Speaker and line-level connections for connecting different sound sources.
6. The specially balanced input circuit rejects electromagnetic interference.
7. Overvoltage and thermal protection with automatic reset.
Technical information
Power
Power supply and fuse: 11 ÷ 15 VDC / 1 x 15 A
Power consumption in sleep mode / switched off: 1.2 A / 0.04 mA
Current consumption @ 2 Ω, 14.4 VDC (at full music power): 15 A
Exciter input voltage: 4 ÷ 15 VDC - 1 mA
Automatic Arousal (ART)
Amplifier
Harmonic Distortion - THD (100 Hz @ 4 Ω): 0.2%
Frequency range: 10 Hz to 30 kHz
Signal-to-noise ratio: 95 dB
Damping factor (100 Hz @ 4 Ω): 45
Input sensitivity (LO): 0.2 ÷ 5 V
Input sensitivity (HI): 0.8 ÷ 20 V
Minimum load impedance @ 4 channels: 2 Ω
Minimum load impedance @ 2 channels: 4 Ω
Continuous power ratings @ 14.4 VDC, THD 1%, 4 channels
4 x 50W @ 4Ω
4 x 65W @ 2Ω
Continuous power ratings @ 14.4 VDC, THD 1%, 3 channels
2 x 50 W @ 4 Ω + 1 x 130 W @ 4 Ω
2 x 65 W @ 2 Ω + 1 x 130 W @ 4 Ω
Continuous power ratings @ 14.4 VDC, THD 1%, 2 channels
2 x 130W @ 4Ω
Continuous power ratings @ 14.4 VDC, THD 10%, 4 channels
4 x 60W @ 4Ω
4 x 75W @ 2Ω
Continuous power ratings @ 14.4 VDC, THD 10%, 3 channels
2 x 60 W @ 4 Ω + 1 x 150 W @ 4 Ω
2 x 75 W @ 4 Ω + 1 x 150 W @ 4 Ω
Continuous power ratings @ 14.4 VDC, THD 10%, 2 channels
2 x 150W @ 4Ω
Inputs, outputs and filters
Inputs: RCA
High pass filter: 65-85-115 Hz @ 12 dB/oct.
Low pass filter: 65-85-115 Hz @ 12 dB/oct.
Accessories included in the package
RCA cables protected from natural forces
Connections
Technologies
IP64 protection rating
The amplifier is dustproof and protected against splashing water
Water jet tested
All Hertz Marine products have an IP64 protection rating, which means they can withstand rain
like splashing water and serve for a long time.
Protected from oxidation
Normal corrosions caused by humid environments are completely neutralized thanks to the amplifier's epoxy-coated circuit boards intended for marine use.
Tested in salt spray
To meet the requirements set by the ASTM-B117 standard, Hertz Marine products are tested by blasting them with a massive salt spray to ensure they are free from oxidation.
Dimensions
Width: 223 mm
Depth: 100.5 mm
Height: 43.6 mm