Hertz HMD8 DSP
8-channel amplifier
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Beschreibung
Introducing the Hertz HMD8 DSP 8-channel marine amplifier: Experience redefined sound with this high-quality audio technology. With a user-friendly DSP PC software interface and impressive performance, the HMD8 DSP can control your entire speaker system and produce crystal-clear sound pressure in up to three different zones of your vessel. Thanks to its robust construction and corrosion-protected circuit board, it guarantees years of listening pleasure on the open water. Powerful, durable and designed for an incomparable sound experience - that's the HMD8 DSP from Hertz.
main features
- power supply
- Supply voltage during operation 11 - 15 VDC / 2 x 30A
- power supply 6.5 V - 17 V
- no-load current 1.6 A
- Off 1.7 mA
- 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)
audio specifications
- amplifier
- Distortion - THD @ 1 kHz, 4Ω, 70% nominal power 0.06%
- Damping factor @ 1 kHz, 4Ω, 2 VRMS > 110
- bandwidth @ -1.5 dB 10Hz - 22kHz
- Signal-to-noise ratio (A weighted @ 1 V input) Master input 100 dBA
- Signal-to-Noise 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
- 8 channels: 2 Ω
- 4Ch - (Bridge 1/2;3/4; 5/6; 7/8) : 4Ω
- Output power (RMS) @28.8 VDC, 1% THD:
- 8 channels @ 4 Ω 85 Watt x 8
- 8 channels @ 2 Ω 130 Watt x 8
- 4Ch (Bridge 1/2; 3/4; 5/6; 7/8) @ 4Ω 260 Watt x 4
Digital Signal Processor
- Filter type full-pass / high-pass / low-pass / band-pass
- Filter model and slope Butterworth (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/octave) Linkwitz-Riley (12, 24, 36, 48, 60 dB/octave) Bessel (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/octave) Chebyshev (6, 12, 18, 24, 30, 36, 42, 48, 54, 60 dB/octave) Quasilinear QLP phase (6, 12 dB/octave)
- Crossover frequency 20 Hz – 20000 Hz integer values
- phase control 0° - 180°
- 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
- Temporal alignment distance 0 - 510 cm
- Delay in time alignment 0 - 15 ms
- Time adjustment step 1 cm
- Memories
- n. 2 storage
- 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
- Max. size W x H x D (mm) 238 x 49.5 x 155
- Weight (kg) 1.98
input / output