Hertz Mille S8 32-bit Hi Res Digital Signal Processor

The ultra-compact S8 DSP is the perfect solution for integrating any OEM source into your audio upgrade project for cars, motorcycles, and boats!

S8 DSP is a distilled essence of technology at the service of the highest audio quality in a corrosion-free case cast in metal and composite materials. S8 DSP processes the audio signal with 96 kHz / 24-bit resolution and has obtained the Hi-Res certification from the JAS (Japan Audio Society), an acknowledgment that certifies the extreme level of audio performance achieved. The powerful 32-bit DSP manages 6 high/low-level analog input channels, one digital coaxial input, and 8 output channels, offering maximum freedom of configuration to the specialist. The SPDIF coaxial input is ideal for digital connection with a Hi-Res player, a solution that allows for maximum listening quality. For each of the eight output channels we have a level control, the 15-pole parametric equalizer, time delays, and crossover filter available. The 7-band parametric equalizer of the input signal allows obtaining a flat response from OEM sources, which often have an exaggerated emphasis on the low frequency.

1. Small and weatherproof – perfect for motorcycles
• Compact size featuring all connections on one side to be installed anywhere
• Anti-corrosion-treated PCB to ensure years of listening pleasure in open nature
• Three different application setups: Car, Motorcycle, Free placement (boat, van, pick-up)
• Party & Ride presets, to optimize the sound performance in all conditions

2. Configurable with a PC, a Mac, an Android device, or an iOS device
• IOS/Android control APPs (Bluetooth 5.0)
• DRC control over app from iOS/Android devices

3. Powerful DSP with the excellent sound quality you expect from Hertz
• Hi-Res audio (96 kHz/24-bit native resolution) for unparalleled audio quality
• 6-channel SPEAKER IN (2,5 – 21 Vrms) on a dedicated socket with a built-in USS
(Universal Speakers Simulator)
• SPDIF coaxial input (up to 24bit/96KHz)
• 8-channel / 4Vrms-capable RCA outputs

• Signal Output Active Limiter prevents clipping

General Specifications
POWER SUPPLY
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
Input Stage
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
Output Stage
Analog outputs (rca):
8 channels
Max output level (rms) @ 0.05% THD:
4V
Analog outputs 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
Digital Signal Processor
Sample rate:
96KHz
Bit depth:
24
Output equalizer:
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:
Each channel individually, or all channels.
Presets:
4 presets
Presets selection:
2 specific wires to control the 4 presets selection by extarnal 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)