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.
Input / Output
Technologies
BUILT-IN DSP
Hertz marine dsp technology allows you to move freely in the boat preserving a perfect surround effect, even with outdoor listening.
MULTI ZONE SETUP
Hertz Marine DSP optimizes acoustic performance for each of the 3 configurable listening zones, regardless of where the speakers are installed and the point of the passenger within the zone, maximizing listening pleasure while cruising.
CROSSOVER FILTER
Filter Type
Full / High pass / Low pass / Band pass
Filter model and slope
Butterworth, Linkwitz-Riley, Bessel, Chebyshev, QLP quasi-linear phase
SPEAKERS EMISSION TIME ALIGMENT
0 - 510 cm (0 - 200.8 inches)
GRAPHIC PARAMETRIC EQ
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
PC-SOFTWARE
Hertz Navigator software allow to create pre-optimized software setup files for a specific boat model and the related audio system installed, ensuring a correct acoustic result in a very short time.
ADVANCE D-CLASS
Thanks to the Hertz advanced D-CLASS output stage, HMD8 DSP joins maximum sound quality with unmatched efficiency to be very compact and easily installed in any position of the boat.
DIGITAL SIGNAL PROCESSOR | |
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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 |
Bass boost | - |
Analog input equalizer | - |
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 |
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) @14.4 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 |