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). 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 weightedDigital inputMaster InputAUX Input 96 105 dBA95 dBA96 dBA Channel Separation @ 1 kHz 85 dB Input sensitivity (Speaker In/ Pre in) 2 ÷ 15 V RMS Input sensitivity (AUX In) 0,6 ÷ 5 V RMS Input impedance Speaker In 5 Ω Input impedance Pre In 2,2 kΩ Input impedance (AUX) 15 kΩ Max Output Level (RMS) @ 0.1% THD 4 V RMS Digital Signal Processor INPUT STAGE Master (Speaker In/Pre in) FL - FR - RL - RR Aux (Pre in) Left - Right 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 dBButterworth @ 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 Accessories DRC HE - Provided Hertz Remote Control 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 fromthe master, auxiliary and optical digital inputs; adjust main system functions (volume, balance, fader and subwoofer volume). Input/Output Technologies Powered by bit Drive technology The H8 DSP firmware, based upon Flash memory, can be updated at any time without having to disassemble the device from the system: the software checks on the available updates from the bit Drive portal (https://bitdrive.it) guiding the user through all of the upgrade phases. USS technology Thanks to the built-in USS technology (Universal Speakers Simulator), H8 DSP can also be correctly connected to head units with “speaker load detection” function that monitors the presence of a low-impedance load to enable the audio outputs. Downloads Owner's Manual Download SW Download FW Test Tracks Hertz H8 DSP
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