Hertz HMD8 DSP 8-Channel Marine Amplifier

Hertz HMD8 DSP 8-Channel Marine Amplifier

The HMD8 DSP, powered by Hertz Marine DSP technology, rich new highs of listening pleasure during navigation. DSP user friendly PC-Software interface make the setup process a breeze, exploiting every single pills of performance from the installed speaker system. The amazing power of 8 * 85 W or 4 * 260 W (RMS@ 4Ω) gives the HMD 8DSP the capability to drive with authority the complete speaker system generating tons of crystal clear SPL up to 3 different zone of the vessel. "Power for the Waves” design philosophy features a sturdy enclosure made of extruded aluminum with an anti-corrosion treated PCB to ensure years of listening pleasure in open water.

Specifications

Power Supply
Operating power supply voltage: 11 ÷ 15 VDC / 2 x 30A
Power supply: 6.5V ÷ 17V
Idling current: 1.6 A
Switched off: 1.7mA
Consumption @ 14.4 VDC, 2Ω, Max Musical Power: 55 A
Remote IN voltage: 6 ÷ 15 VDC (1 mA)
Remote OUT voltage: 4 ÷ 15 VDC (150 mA)

Amplifier Stage
Distortion - THD @ 1 kHz, 4Ω, 70% Rated Power: 0.06%
Damping factor @ 1 kHz, 4Ω, 2 VRMS: > 110
Bandwidth @ -1.5 dB: 10Hz ÷ 22kHz
S/N ratio (A weighted @ 1 V Input) Master Input: 100 dBA
S/N ratio (A weighted @ 1 V Input) Optical Input: 105 dBA
Input sensitivity Pre-In: 0.6 ÷ 6 VRMS
Input sensitivity Speaker-In: 2.2 ÷ 22 VRMS
Minimum load impedance: 8Ch: 2Ω
4Ch - (Bridge 1/2; 3/4; 5/6; 7/8) : 4Ω
OUTPUT POWER (RMS) @28.8 VDC, 1% THD:
     8Ch @ 4Ω: 85 W x 8
     8Ch @ 2Ω: 130 W x 8
     4Ch (Bridge 1/2; 3/4; 5/6; 7/8) @ 4Ω: 260 W x 4

Digital Signal Processor
Filter type: Full / High pass / Low pass / Band pass
Filter model and slope: Butterworth (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/oct)
Linkwitz-Riley (12, 24, 36, 48, 60 dB/oct)
Bessel (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/oct)
Chebyshev (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/oct)
QLP quasi-linear phase (6, 12 dB/oct)
Crossover frequency: 20 Hz – 20000 Hz integer values
Phase control: 0 ° - 180°, all pass equalizer poles
Output equalizer: Graphic and Parametric modes
n. 10 parametric poles (Peaking, High Shelf, Low Shelf, Notch, All pass) ±12 dB gain, variable Q (0.5 – 16.0)
n. 10 graphic poles
Time alignment distance: 0 - 510 cm (0 – 200.8 inches)
Time alignment delay: 0 - 15 ms
Time alignment step: 1 cm
Time alignment fine set step: 1 sample
Memories: n. 2 memories
n. 3 parametric poles for each memory (Peaking, High Shelf, Low Shelf) ±12 dB gain, variable Q (0.5 – 16.0)
Preset: Rotary switch for 7 installation presets

Physical Specifications
Weight (kg/lbs): 1,98 / 4.36
Max size W x H x D (mm/inch): 238 x 49,5 x 155 / 9.37 x 1.95 x 6.1