Hertz H8 DSP TECHNICAL SPECIFICATIONS

DIGITAL INTERFACE PROCESSOR

www.hertzaudiovideo.com

H8 DSP

DIGITAL INTERFACE PROCESSOR

POWER SUPPLY

Operating power supply voltage 10.8 ÷ 14.4 VDC
Power supply 7.5 ÷ 15 VDC
Idling current 0,4 A
Switched off without DRC 2,5 mA
Switched off with DRC 4 mA
Remote IN voltage 6,5 ÷ 15 VDC (1,3 mA)
Remote OUT voltage 12 VDC (130 mA)

SIGNAL STAGE

Distortion - THD @ 1 kHz, 1V RMS Output 0,005%
Bandwith @ -3 dB 10 ÷ 22k Hz
S/N Ratio @ A weighted
Digital input 105 dBA
Master Input 95 dBA
AUX Input 96 dBA
Channel Separation @ 1 kHz 85 dB
Input sensitivity (Speaker In) 2 ÷ 15 V RMS
Input sensitivity (AUX In) 0,6 ÷ 5 V RMS
Input impedance (Speaker In) 2,2 kΩ
Input impedance (AUX) 15 kΩ
Max Output Level (RMS) @ 0.1% THD 4 V RMS

INPUT STAGE

High Level (Speaker) FL - FR - RL - RR

Low Level (Pre) AUX IN

Digital Optical IN (S/PDIF max 96 kHz/24bit) OPTICAL IN

OUTPUT STAGE

Low Level Pre (default)

CONNECTIONS

From / To Personal Computer 1 x USB / B
DRC HE
Optical / AUX select
Memory A / Memory B Memory A

CROSSOVER N.8 (one for each output channel)

Filter Type Full / High Pass / Low Pass / Band Pass

Filter mode and slope

Crossover frequency 68 steps @ 20
Phase control 0°

EQUALIZER

On Hi-Levels input (Speaker In) Automatic De-Equalization On

Outputs

TIME ALIGNMENT

Distance 0
Delay 0
Step 0.08 ms; 2,8 cm / 1.1 inch
Fine set 0.02 ms; 0,7 cm / 0.27 inch

GENERAL REQUIREMENTS

PC connections USB 1.1 / 2.0 / 3.0 Compatible

Software/PC requirements:

Graphic card min. resolution: 800 x 600
Ambient operating temperature range: 0 °C to 55 °C (32°F to 131°F)

SIZE

W (Width) x H (Height) x D (Depth) mm/inch

Weight kg/lb 0,6 / 1.322

FRONT TW L/R, FRONT WF L/R REAR L/R,
SUB, CENTER

Audio controls and Memory / Inputs selection
Optical In / Aux wire control + 12V / GND enable

Linkwitz @ 12 / 24 dB
Butterworth @ 6 / 12 / 18 / 24 dB

÷ 180°

/ B wire control + 12V / GND enable

÷ 20k Hz

N.8 Graphic: ±12 dB @ 31 Band
ISO 1/3 Oct. 20

÷ 510 cm / 0 ÷ 200.8 inch
÷ 15 ms

Microsoft Windows (32/64 bit):
XP, Vista, Windows 7, Windows 8,
Windows 10

191 x 34 x 131 / 7.51” x 1.33” x 4.76”

÷ 20k Hz

AUDIO DSP AND CONVERTERS

32 bit Cirrus Logic (Clock speed: 147 MHz) Digital Signal Processing chip and A/D D/A
converters working in PCM at 48 kHz with 24 bit resolution. The processor speed allows
the user to hear and verify in real time the changes applied during the tuning.

AUDIO INPUTS

4 independent high-level channels with automatic summing capability.
1 analog low-level stereo auxiliary input.
1 optical digital input.

AUDIO OUTPUTS

8 independent analog PRE channels featuring adjustable level.

CONTROL CONNECTIONS

1 USB /B (2.0) connector for PC connection.
Optical In / Aux Wire control +12V/GND.
Wire control Memory A/B.
1 Connector for DRC HE.

CONFIGURATION

Guided procedure which, thanks to a wide range of default settings, provides the ability
to assign each component to the H8 DSP connections and automatically coordinate their
functions.

TURN-ON CONTROLS

ART™, Automatic Remote Turn on/off, selectable from Hi-Level Front L.
The ART™ function can be enabled through an external switch, the Remote IN, the vehicle
ignition key with memory function, the DRC HE (optional).

IN/Out VOLUME

Manual input sensitivity adjustment for the Master Hi-Level inputs (with supplied Test CD).
Manual input sensitivity adjustment for auxiliary inputs.
Independent level control for each output channel for system fine tuning (-40 ÷ 0 dB).

DE-EQUALIZATION

Automatic de-equalization of the high-level inputs signal (with supplied Test CD)
if necessary. It can also be performed without the PC.

EQUALIZERS

31-band graphic equalizer (1/3 Oct.; ±12dB) for each analog and digital output channel.

CROSSOVER FILTER

Filter typology: Hi-pass, Lo-pass, Full Range or Band-pass with independent selectable
cut-off slope.
Cut-off frequency: 68 steps available from 20 Hz to 20 kHz.
Cut-off slope: 6 to 24 dB/Oct.
Filter alignment: Linkwitz or Butterworth.
Mute function: selectable for each output (on/off).
Phase: selectable for each output (0°/180°).

SIGNAL CHANNELS RECONSTRUCTION

It can reconstruct a stereo output signal from a multi-channel input signal.
In addition it can also reconstruct rear, centre and subwoofer output channels from a
stereo input.

TIME ALIGNMENT

Guided procedure for the speaker distance data entry with an automated calculation
(distance to time) for each channel accurate time delays.
“Fine-tuning” can also be manually applied (0.02 ms fine set).

REMOTE CONTROL

Master Volume, Subwoofer Volume, Balance and Fader controls, Input selection, Memory
selection.

MEMORY

2 presets separately managed and recalled via DRC HE and wire control.

PC SOFTWARE

Microsoft Windows (XP, Vista and 7,8,10) based software with “Standard” and “Expert”
operating modes; screen resolution: 1024 x 600 px min.

Elettromedia - 62018 Potenza Picena (MC) Italy - T [phone] - F [phone] - www.elettromedia.it

All Specifications Subject to Change Without Notice_17.B