General Specifications:

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)

Audio Specifications

• 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: 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

Digital Signal Processor

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

CONNECTIONS

• 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°

EQUALIZER

• 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

TIME ALIGNMENT

• 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

Physical Specs

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

Hertz H8 DSP car audio processor 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. It provides 7 signal inputs with a variety of connection options: four high-level inputs, also accepting low-level pre-amplified signals; a stereo auxiliary input and an optical digital input accepting signals at a sample rate up to 96/24 bit. The optical digital input (selectable through the DRC HE remote control and from the “Optical / AUX select” terminal) nullifies interferences and signal deteriorations also by-passing the analog signals A/D conversion stages.  Thanks to the configuration Wizard provided by the software during the set-up, the H8 DSP can automatically sum up multiple filtered channels (for instance, woofer plus tweeter), “flatten” the OEM source equalized response curve and reconstruct a centre, rear and/or subwoofer channel with a simple stereo input. By reading the test track on the CD provided, the H8 DSP recreates a full-bandwidth signal, with a flat frequency response and released after processing for an outstanding sound quality.  The H8 DSP features 8 PRE OUT analog outputs each of them including: a 31 band equalizer, a 68 step electronic crossover, Linkwitz- Riley or Butterworth filters with selectable 6 – 24 dB adjustable slopes and digital time delay functions. 

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. 

The PC software is available in English, Italian, German, Russian, Chinese, Japanese, Korean. The user can select the language and the change will be applied to the drop-down menus as well as to the Context Help messages. The number of available languages will increase: once updates are available, they will be downloadable from the bit Drive portal (www.bitDrive.it).

The provided DRC HE enables the main system control without the use of a PC. Thanks to this device, installed in an ergonomic position within the car dashboard, the user can: choose between two “tuning” configurations previously saved using the PC software; select the source from the master, auxiliary and optical digital inputs ; adjust main system functions (volume, balance, fader and subwoofer volume).