Hertz S8 DSP

Growing interest in upgraded audio for marine and off-road applications has led to the design of this full-featured but miniature DSP unit from Hertz. The device features 6 high/low-level analog input channels, one digital coaxial input, and 8 output channels. With a 15-pole parametric equaliser and time alignment available on each channel, the possibilities are almost endless for ensuring that even in non-road car applications, audio is handled with great care. 24bit 96kHz capability ahas earned the S8 Hi Res status from the Japan Audio Society (JAS)

Technical Specification

Nominal Power supply voltage / fuse: 7 - 20 VDC / 1A

Pulse operating voltage: 5 - 24 VDC

Idling current: 0.34 A

OFF current (ART= OFF): <80 uA

OFF current (ART= ON): <80 uA

Remote IN 6 - 20 VDC (10 mA)

Remote OUT 4 - 20 VDC (150 mA)

ART - Automatic Remote Turn on/off from BTL speaker outputs (selectable): 1.5 - 7 VDC

Analog outputs (rca): 8 channels

Max output level (rms) @ 0.05% THD: 4V 95dBA

Analog output management The DSP controls each output channel: gain, crossover, EQ, delay, polarity

Bandwidth: 10Hz – 40KHz (+/-3db)

Signal to noise ratio (A weighted): 105dBA (Analog Input) 112dBA (Digital Input)

THD+N (@ 1Vrms out, @ 1Khz): <0.005%

Crosstalk (channel separation) @ 1KHz: >95dBA

Analog low level Inputs: 6 ch. (Differential input) (Molex microfit to RCAs)

Analog high level Inputs: 6 ch. (Differential input) (Molex microfit to tripped ends) + USS (Universal Speakers Simulator)

Digital inputs: Yes (Coaxial SPDIF; up to 24bit 96KHz) (Molex microfit to RCA)

Input sensitivity (low level): 0.8V – 6V RMS

Input sensitivity (high level): 2.5V – 21V RMS

Analog inputs management: Audio input routing matrix type

Analog inputs eq: 7 bands paragraphic for each input channel

ART: Automatic Remote Turn-On/Off with Speaker-In

Sample rate: 96KHz

Bit depth: 24

Output equaliser: 15 bands per channel w/ adjustable Q and Frequency

Equalizer resolution: 1/10th dB per step +12dB / -12dB

Time alignment (distance): 0 - 468.4 cm / 0 - 184.4 inches

Time alignment (time): 0 - 13.5ms

Time alignment (step): 0.08 ms; 2.8 cm / 1.1 inch

Time alignment (fine set): 0.02 ms; 0.7 cm / 0.27 inch

Crossovers: AP/HP/LP/BP all channels

Crossover type: Butterworth, Linkwitz-Riley, Bessel (All Channels)

Crossover slope: From 6dB/oct. until 30dB/oct. (6dB step)

Crossover steps: 120 steps 20Hz-20KHz

Mute function: Mute every channel separately or all together.

Presets: 4 presets

Presets selection: 2 specific wires to control the 4 presets selection by external switches.

Input selection by wire: One specific wire to select the desired input between Analog or Digital.

Audio signal compressor on output stage: Yes (enable/disable)

DSP chipset Analog Device: ADAU1451

DSP management by bt app (iOS/ Android)

1. CONFIGURATOR mode Mainly it’ll allow the DSP tuning. You can manage every DSP functon through your smartphone/ tablet/PC/MAC. 2. DRC mode The BT device becomes a remote control by using the dedicated app with a simple graphical user interface. Manage volume level, SUB level, select different setup files, upload a new setup file.

Setup file sharing via bt Upload a setup file via BT through the BT APP when in “Configurator” or “DRC” mode.

DSP management by pc / mac / ios / android Microsoft Windows (32/64 bit): Windows 10 (USB and BT BLE) Windows 11 (USB and BT BLE) Mac Os: 10.13 Hight Sierra or later (USB and BT BLE)

Max size W x H x D (mm/inch): 130 x 33.8 x 88.3 / 5.11 x 1.44 x 3.47

Weight (kg/lbs): 0.66 / 1.45