HMD8 DSP

General 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)

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