Hertz H8 DSP DRC Car Audio Processor with 8 PRE OUT Analog Outputs, 31-Band Equalizer Per Output, Includes DRC HE Controller
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• Car Audio Processor
Simple and Intuitive Computer Software
Hertz H8 DSP is capable of interfacing with any analog and/or digital source, transforming ordinary “audio” into a high-performance integrated system. The simple and intuitive computer software ensures a wide array of adjustments to improve the acoustic response of a complex environment like the car compartment.
Developed According to Specific Ergonomics
Developed according to specific ergonomics criteria required by the Car Audio industry, the PC software facilitates direct access to all the available functions for the signal treatment, providing immediate results, as well as extreme operational accuracy. Setting the parameters of each input single channel, adjusting the delays according to the listening position, tuning the crossovers and equalizers for each output channel; these are just some of the operations that can be managed by the PC software based on Windows platform (XP, Vista, 7,8, 10) to be used in Standard or Expert mode.
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.
4 independent high-level channels with automatic summing capability.
1 analog low-level stereo auxiliary input.
1 optical digital input.
8 independent analog PRE channels featuring adjustable level.
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.
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.
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).
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).
Automatic de-equalization of the high-level inputs signal (with supplied Test CD) if necessary. It can also be performed without the PC.
31-band graphic equalizer (1/3 Oct.; ±12dB) for each analog and digital output channel.
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.
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).
2 presets separately managed and recalled via DRC HE and wire control.
Microsoft Windows (XP, Vista and 7,8,10) based software with “Standard” and “Expert” operating modes; screen resolution: 1024 x 600 px min.
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)
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
High Level (Speaker): FL - FR - RL - RR
Low Level (Pre): AUX IN
Digital Optical IN (S/PDIF max 96 kHz/24bit): OPTICAL IN
Low Level Pre (default):FRONT TW L/R, FRONT WF L/R REAR L/R, SUB, CENTER
From / To Personal Computer: 1 x USB / B
DRC HE: Audio controls and Memory / Inputs selection
Optical / AUX select: Optical In / Aux wire control + 12V / GND enable
Memory A / Memory: B Memory A / B wire control + 12V / GND enable
Crossover N.8 (one for each output channel)
Filter Type: Full / High Pass / Low Pass / Band Pass
Filter mode and slope:
Linkwitz @ 12 / 24 dB
Butterworth @ 6 / 12 / 18 / 24 dB
Crossover frequency: 68 steps @ 20 ÷ 20k Hz
Phase control: 0° ÷ 180°
On Hi-Levels input (Speaker In): Automatic De-Equalization On
Outputs N.8 Graphic:
±12 dB @ 31 Band
ISO 1/3 Oct. 20 ÷ 20k Hz
Distance: 0 ÷ 510 cm / 0 ÷ 200.8 inch
Delay: 0 ÷ 15 ms
Step: 0.08 ms; 2,8 cm / 1.1 inch
Fine set: 0.02 ms; 0,7 cm / 0.27 inch
PC connections: USB 1.1 / 2.0 / 3.0 Compatible
Microsoft Windows (32/64 bit):
XP, Vista, Windows 7, Windows 8,
Graphic card min. resolution: 800 x 600
Ambient operating temperature range: 0 °C to 55 °C (32°F to 131°F)
W (Width) x H (Height) x D (Depth) mm/inch: 191 x 34 x 131 / 7.51” x 1.33” x 4.76”
Weight kg/lb: 0,6 / 1.322
Authorized Internet Dealer
Warranty: 1 Year Manufacturer warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
This is a great piece of gear. I have found the Audison/Hertz line of equipment to be top shelf equipment. The ease of use and intuitive software make this DSP a valuable tool in the toolbox. Line inputs and 8 Channels out gives a lot of options. Being able to do time correction, line levels, and full active solution in one box is very powerful. The installation instructions leave a bit to be desired. The DRC installation has no instructions. I had to look on a like Audison product to find out I was plugging it in backwards (It goes in one way much easier than the other. The other actually makes it work). There are also different products available for the Audison which is not available for the Hertz equipment even though its almost the exact same product. Like a plug with RCA ports already wired in if you have RCA cables. Would I trade this for anything else, no way! This box is very powerful and for the price provides all the features necessary for this build.
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