Hertz S8 DSP User manual

hertz-audio.com
USER’S
MANUAL
S8 DSP
Digital Interface Processor
rev. 1a

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USER’S MANUAL /
Index
1. PRODUCT DESCRIPTION..................................................................................................................................................................................3
2. PACKAGING CONTENT.....................................................................................................................................................................................4
3. S8 DSP INSTALLATION ....................................................................................................................................................................................4
4. CONNECTIONS PANEL.....................................................................................................................................................................................5
1USB ........................................................................................................................................................................................................5
2LED STATUS.............................................................................................................................................................................................5
3LED BT......................................................................................................................................................................................................5
4PWR/REM...............................................................................................................................................................................................6
5OUTPUT....................................................................................................................................................................................................7
6PRE IN - DIGITAL IN................................................................................................................................................................................7
7SPEAKER IN.............................................................................................................................................................................................8
5. CONNECTIONS..................................................................................................................................................................................................9
5.1 POWER SUPPLY AND REMOTE TURN ON ...........................................................................................................................................9
5.2 INPUT SIGNALS .....................................................................................................................................................................................10
5.2.1 PRE IN - Ch1/Ch6 STEREO ANALOG SIGNAL ..........................................................................................................................10
5.2.2 DIGITAL IN - S/PDIF DIGITAL INPUT .........................................................................................................................................10
5.2.3 SPEAKER IN - CH1/CH6 (ALTO LIVELLO).................................................................................................................................11
5.3 OUTPUT SIGNALS .................................................................................................................................................................................12
5.4 CONNECT S8 DSP TO THE PC/MAC ....................................................................................................................................................12
6. GUIDE FOR INSTALLING S8 DSP SOFTWARE .............................................................................................................................................13
6.1 PC WINDOWS........................................................................................................................................................................................13
6.1.1 INSTALLAZIONE SOFTWARE.....................................................................................................................................................13
6.1.2 SOFTWARE UNINSTALL .............................................................................................................................................................15
6.2 MAC OS ..................................................................................................................................................................................................16
6.2.1 macOS..........................................................................................................................................................................................16
6.3 S8 DSP APP INSTALLATION ON MOBILE DEVICES............................................................................................................................17
6.3.1 ANDROID .....................................................................................................................................................................................17
6.3.2 APPLE iOS ...................................................................................................................................................................................17
7. S8 DSP SET UP WITH PC/MAC .....................................................................................................................................................................18
7.1 OFFLINE MODE.....................................................................................................................................................................................18
7.1.1 CREATE NEW SETUP..................................................................................................................................................................19
7.1.2 OPEN A SAVED SETUP...............................................................................................................................................................21
7.2 CONNECT USB MODE...........................................................................................................................................................................21
7.2.1 CONNECTION VIA USB CABLE ..................................................................................................................................................21
7.3 CONNECT BT MODE..............................................................................................................................................................................23
7.4 S8 DSP DEFAULT SETUP......................................................................................................................................................................25
7.4.1 INPUTS.........................................................................................................................................................................................25
7.4.2 OUTPUTS .....................................................................................................................................................................................25
7.5 I/O CONFIGURATION WIZARD.............................................................................................................................................................26
7.5.1 SYSTEM SELECTION ...................................................................................................................................................................25
7.5.2 SPEAKER SELECTION.................................................................................................................................................................28
7.5.3 PASSIVE CROSSOVER SELECTION - OUTPUT CHANNELS ASSIGNMENT /OUTPUT CHANNELS NAME............................29
7.5.4 ANALOG INPUTS CONFIGURATIONS.........................................................................................................................................31
7.5.5 ANALOG INPUTS-OUTPUTS ROUTING......................................................................................................................................32
7.5.6 INPUTS SENSITIVITY SETUP.......................................................................................................................................................35
7.5.7 INPUTS EQ SETUP (ANALOG INPUTS EQUALIZER)..................................................................................................................36
7.5.8 WIZARD COMPLETED.................................................................................................................................................................38
8. S8 DSP SETUP USING A PC/MAC .................................................................................................................................................................39
8.1 MAIN MENU “FILE”...............................................................................................................................................................................40
8.2 MAIN MENU “SETTINGS”......................................................................................................................................................................45
8.3 MAIN MENU “MEMORY”......................................................................................................................................................................52
8.4 CHANNEL MAP .....................................................................................................................................................................................53
8.5 CHANNEL LIST ......................................................................................................................................................................................53
8.6 CROSSOVER SETTINGS.........................................................................................................................................................................54
8.7 OUTPUT EQUALIZER.............................................................................................................................................................................57
8.8 OUTPUT LEVEL......................................................................................................................................................................................58
8.9 SELECT INPUT .......................................................................................................................................................................................59
8.10 MEMORY ...............................................................................................................................................................................................59
8.11 DEVICE INFO..........................................................................................................................................................................................59
9. TROUBLESHOOTING ......................................................................................................................................................................................60
9.1 BACKGROUND NOISE...........................................................................................................................................................................60
9.2 FIRMWARE UPGRADE..........................................................................................................................................................................61
10.TECHNICAL SPECIFICATIONS ........................................................................................................................................................................63

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1. PRODUCT DESCRIPTION
S8 DSP is a digital signal processor essential to maximize the acoustic performance of your car audio system. It features
13 signal inputs, 6 Hi-Level, 6 Pre-In and 1 S/PDIF 24bit/96kHz digital coaxial and provides 8 PRE OUT analog outputs.
Each input channel is equipped with a 7-band adjustable parametric equalizer, and each output with a 15-band
adjustable parametric equalizer, 122-frequency steps electronic crossover, BUTTERWORTH, LINKWITZ or BESSEL with
slopes from 6 to 30 dB and a digital time delay line.
It is provided with a software to configure the product in both Windows OS and macOS versions, as well as in an APP
version that can be downloaded online for both Android and Apple mobile devices.
-1 - Fuse 1 A:
2. PACKAGING CONTENTS
- Multipolar cable, Output:
-USB cable 1.8 m:
-4 self-tapping, cross-head fixing screws 3,5 x 25 mm:
-USB Memory Dongle Setup:
S8 DSP Software (Windows)
This User’s manual (.pdf)
Audio Test tracks
- QSG:
-Warranty
-Signal Interface Processor S8 DSP
-Multipolar cable, Speaker IN:
-Multipolar cable, Pre-IN/Digital-IN:
-Multipolar cable PWR/REM:
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 6
IN 5
IN 4
IN 3
IN 2
IN 1
S/PDIF-IN
FUSE
IN 7
IN 6
IN 5
IN 4
IN 2
IN 1
IN 8
IN 3
1/2
S8 DSP

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3. S8 DSP INSTALLATION
External dimensions Mounting dimensions
Installation
WARNING for all INPUT/OUTPUT cables
88,3 mm / 3.47 in.
130 mm / 5.11 in.
40,5 mm / 1.59 in.
118 mm / 4,6 in.
OK
36,8 mm / 1.44 in.
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4. CONNECTIONS PANEL - DESCRIPTION
1
2
3
31
7
4
5
2
6
USB
Connection socket (Micro USB female) to connect the processor to a PC/MAC and manage the functions via the S8 DSP
software (see sect. 5.4) . The connection standard is compatible with USB 1.1/ 2.0/3.0.
LED STATUS:
Through the LED lighting it is possible to identify the status of the processor:
Green: S8 DSP is on and functioning normally.
Light green (BT LED TURNED OFF): S8 DSP is connected to the PC/MAC via USB.
Green/blue flashing: S8 DSP is communicating data with the control device via software (see sect. 7.2 - 7.3) .
Purple: S8 DSP is configured with DIGITAL IN input but is not detecting a digital signal (see sect. 8.9) .
Orange: S8 DSP is signalling the presence of clipping on the analog input (see sect. 7.5.6) .
Red: S8 DSP is reporting a malfunction or breakdown.
White: S8 DSP is in UPGRADE mode (see sect. 9.2) .
LED BT:
Through the LED lighting it is possible to identify the status of the processor’s bluetooth connection,
BLU flashing: S8 DSP is waiting to pair with a Bluetooth device (see sect. 7.3 - 8.1.6) .
BLUE: S8 DSP is connected with a Bluetooth device (see sect. 7.3 - 8.1.6) .
Turned off: S8 DSP is reporting a malfunction of the Bluetooth module or connected via USB.
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FUSE
•+ BATT (7÷20 VDC): terminal for connecting the positive power supply pole to S8 DSP.
•GND (Ground): terminal to connect the processor’s power supply negative pole. Connect the negative battery
cable or a cable connected to the car’s chassis.
To fix the ground connection (-) correctly use a screw already available on the vehicle’s chassis; remove any paint
or grease residue if necessary, ensuring that there is a continuity between the negative terminal (-) of the battery
and the fixing point. If possible, connect all audio components grounds to the same point as this solution is
necessary to reduce the majority of parasitic noises which may arise during reproduction.
•REM IN: terminal to turn on the S8 DSP via the Remote Out output of the audio signal source. The applied voltage
must be between 6 and 20 VDC. If you are using a source with BTL amplified outputs, the S8 DSP can turn on
automatically (see section 5.1) , so you will not need to connect the REM IN terminal.
•REM OUT: toutput terminal for the remote turn on of other devices/amplifiers connected to the S8 DSP. The processor
takes 3 seconds to provide the REM OUT to the output, but you can manually set this delay with the software
(see section . 8.2.7.2.2) . This output has a current capacity of 150 mA and can drive an automotive relay.
•IN SEL: to switch to the selected input via the software (see section 8.2.7.1) .
This command is active by connecting the terminal to MEM GND (see section 5.1) .
•MEM SEL1 - MEM SEL 2: allows the selection of the memories of the S8 DSP (see section. 8.10) .
This command is active by connecting the terminals to MEM GND (see section 5.1) according to the following table:
•MEM GND: ensures
1if connected to IN SEL (see section 5.1) to switch to the selected input through the control software (see section 8.2.7.1) ,
2if connected to MEM SEL1 - MEM SEL 2 (see section. 5.1) the S8 DSP memories selection (see section. 8.10)
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PWR/REM:
The cable is provided to manage the power supply and the various control connections.
WIRE SIZE 20 AWG
1A + BATT
REM OUT
GND
MEM/SEL2
MEM/SEL1
REM IN
MEM GND
IN SEL
MEM SEL1 MEM SEL2 MEMORY SELECTION
NC NC A*
MEM GND NC B
NC MEM GND C
MEM GND MEM GND D
WARNING: the system returns to memory Awhen MEM SEL 1, MEM SEL 2 terminals are disconnected from
MEM GND, so if you want to use this function it is advisable to finalize the device or assign memory A
as a favorite preset to the input used (see section sez.8.2.7.3.).
190 mm / 7.48 in.
6 mm
0.23 in.
4
REAR VIEW
BlueBlue/White
BlackPink
BlackYellow
WhiteWhite
Pink
White/Blue
White
Black
Blue
Yellow
Black
White

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6
PRE IN - DIGITAL IN:
•PRE IN. ANALOG (RCA) low level input
IN1 - IN2 - IN3 - IN4 - IN5 - IN6
The cable is provided to connect the preamplified signal outputs from the analog Master source with RCA connectors.
Through the software it will be possible to specialize the inputs by assigning the desired input (see section. 7.5.4 - 7.5.5 - 8.2.2) .
Input sensitivity adjustable from 0,8 to 6 V RMS
•DIGITAL IN. S/PDIF digital input
S/PDIF-IN
The cable is provided to connect the signal from your source with digital output via a specific coaxial cable for digital
signals with RCA connection. S8 DSP accepts PCM signals at its input with a maximum sampling frequency up to
96 kHz 24 bit, therefore it is not possible to reproduce DOLBY DIGITAL (AC3) encoded multichannel signals from
audio/video sources (such as the audio of a film in DVD) or DTS.
OUTPUT Low level analog signal (4 Volt RMS).
Ch1 - Ch2 - Ch3 - Ch4 - Ch5 - Ch6 - Ch7 - Ch8
The cable is provided to be connected to the RCA cables going to the system amplifiers.
5
4
IN 6
IN 5
IN 4
IN 3
IN 2
IN 1
S/PDIF-IN
200 mm / 7.87 in.
White
White/Black
Gray
Gray/Black
Green
Green/Black
Purple
Purple/Black
Blue
Blue/Black
Brown
Brown/Black
Orange
Orange/Nero
WIRE SIZE 20 AWG
6 mm
0.23 in.
REAR VIEW
OUT 8 -
OUT 6 -
OUT 4 -
OUT 2 -
OUT 8 +
OUT 6 +
OUT 4 +
OUT 2 +
OUT 7 -
OUT 5 -
OUT 3 -
OUT 1 -
OUT 7 +
OUT 5 +
OUT 3 +
OUT 1 +
WIRE SIZE 20 AWG
200 mm / 7.87 in.
6 mm
0.23 in.
OUT 8
OUT 4
OUT 6
OUT 2
OUT 7
OUT 3
OUT 5
OUT 1
REAR VIEW
IN 6 -
IN 4 -
IN 2 -
IN 6 +
IN 4 +
IN 2 +
IN 5 -
IN 3 -
IN 1 -
S/PDIF + S/PDIF -
IN 5 +
IN 3 +
IN 1 +

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White
White/Black
Gray
Gray/Black
Green
Green/Black
Purple
Purple/Black
Blue
Blue/Black
Brown
Brown/Black
190 mm / 7.48 in.
6 mm
0.23 in.
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SPEAKER IN high level input:
IN1 - IN2 - IN3 - IN4 - IN5 - IN6
The cable is provided to be connected to the amplified signals coming from the analog Master source. Through the
software it will be possible to specialize the inputs by assigning the desired input (see sections 7.5.4 - 7.5.5 - 8.2.2) .
Input sensitivity adjustable from 2,5 to 21 VRMS.
Remark: when connecting a speaker input cable, use solderless crimped Faston terminals.
WIRE SIZE 20 AWG
REAR VIEW
White White/Black
Green Green/Black
Blue Blue/Black
Gray Gray/Black
Purple Purple/Black
Brown Brown/Black
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5. CONNECTIONS
The S8 DSP is on when the logo is lit green. It can be turned on/off using the following methods:
1.By connecting the REMOTE IN terminal with a Remote Out signal coming from an after market audio source.
2.Through the Speaker IN (IN 1 - IN 2) input. The ARTTM, (auto remote TURN-ON) function is activated by connecting
the output (BTL) of an amplified source to the SPEAKER IN 1 - IN 2 input channel. This function can be enabled/
disabled using the S8 DSP software, (see section 8.2.7.2.1) .
How to turn the S8 DSP on and off
YELLOW PWR/REM
BLUE REM IN
BLUE/WHITE REM OUT
PINK IN SEL
BLACK MEM GND
BLACK
FUSE
HOLDER
(1A)
from HEAD UNIT
*
not supplied
to Amplifier
REMOTE IN
*
*
*
WHITE MEM SEL 1
WHITE MEM SEL 2
5.1 POWER SUPPLY AND REMOTE TURN ON
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5.2 INPUT SIGNALS
5.2.1 PRE IN - CH1/CH6 STEREO ANALOG SIGNAL
5.2.2 DIGITAL IN - S/PDIF DIGITAL INPUT
After market Source
IN 6
IN 5
SUB
REAR
IN 4
IN 3
FRONT
IN 2
IN 1
L
R
L
R
L
R
1234567
PWR/REM
1234567
PWR/REM
S/PDIF OUT
75 Ohm Coax Cable
for digital audio
Not Supplied
Not Supplied
COAX S/PDIF
24 bit 96 kHz max
After market Source
IN 6
IN 5
SUB
REAR
IN 4
IN 3
FRONT
IN 2
IN 1
L
R
L
R
L
R
1234567
PWR/REM
1234567
PWR/REM
S/PDIF OUT
75 Ohm Coax Cable
for digital audio
Not Supplied
Not Supplied
COAX S/PDIF
24 bit 96 kHz max
How to select the PRE IN input
1.By selecting the ANALOG input (see section. 8.9) previously set up on (RCA) using the S8 DSP software (see section 8.2.2) .
2.By usung the IN SEL terminal (see section. 4.4) .
How to select the DIGITAL IN input
1.By selecting the DIGITAL input using the S8 DSP software (see section. 8.9) .
2.By usung the IN SEL terminal (see section. 4.4)
3.With the function Automatic switch to digital input, to be enabled using the S8 DSP software (see section. 8.2.4) .
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5.2.3 SPEAKER IN - CH1/CH6 (HIGH LEVEL)
123456
PWR/REM
FL
FR
RL
RR
IN 1 +
IN 1 -
IN 2 +
IN 2 -
IN 3 +
IN 3 -
IN 4 +
IN 4 -
IN 5 +
IN 5 -
IN 6 +
IN 6 -
Connect to other
HI-LEVEL OUTPUT
signal if avaiables
After market Source
ART (Automatic Remote Turn-on)
only on IN 1 (+/-) -IN 2 (+/-)
How to select the SPEAKER IN Input
1.By selecting the ANALOG input (see section 8.9) previously set on HIGH LEVEL via the S8 DSP software (see section 8.2.2) .
2.By using the IN SEL terminal (see section. 4.4) .
Remark: the CH1 CH2 channels feature the ARTTM, (auto remote TURN-ON) function, automatic on/off, through
connection with the source speaker outputs (BTL). This function can be activated via software (see section 8.2.7.2.1) .
Remark: the Speaker IN input features USS technology that allows the processor to work with sources equipped with
the “loudspeaker load sensing” circuit.
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PWR/REM
BT
STATUS
SPEAKER IN
PRE IN - DIGITAL IN
OUTPUT
Supplied
USB Cable
1
S8 DSP can be connected to PC/MAC:
1.Using the USB cable
2.Using a Bluetooth connection.
5.4 CONNECT S8 DSP TO THE PC/MAC
12345678
PWR/REM
CH 5 ÷ CH 6 CH 1 ÷ CH 4 CH 8 CH 7
AMPLIFIER AMPLIFIER AMPLIFIER AMPLIFIER
CH 1 CH 2 CH 3 CH 4 CH 5 CH 6 CH 7 CH 8
5.3 OUTPUT SIGNALS
DEFAULT OUTPUT CONFIGURATION
OUTPUT CH NAME FILTER FILTER TYPE FILTER FREQUENCY/SLOPE
CH1 Front TW Left HI PASS BUTTERWOORTH 3412 Hz @ 12dB
CH2 Front TW Right HI PASS BUTTERWOORTH 3412 Hz @ 12dB
CH3 Front WF Left BAND PASS BUTTERWOORTH 80 Hz @ 12dB / 3412 Hz @ 12dB
CH4 Front WF Right BAND PASS BUTTERWOORTH 80 Hz @ 12dB / 3412 Hz @ 12dB
CH5 Rear Left HI PASS BUTTERWOORTH 80 Hz @ 12dB
CH6 Rear Right HI PASS BUTTERWOORTH 80 Hz @ 12dB
CH7 Center HI PASS BUTTERWOORTH 606 Hz @ 12dB
CH8 Subwoofer BAND PASS BUTTERWOORTH 20 Hz @ 12dB / 80 Hz @ 12dB
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6. GUIDE FOR INSTALLING S8 DSP SOFTWARE
6.1 PC WINDOWS
Inside the S8 DSP setup USB device, there are all the files necessary for the setup of the S8 DSP:
• Software S8 DSP (PC Windows)
• This User’s Manual (.pdf)
• Audio test tracks
2. Windows 10/11: access Computer from the Windows menu.
3.Windows 10/11: select the “S8 DSP setup” USB device and double click on the icon S8 DSP V.X_X_X.
Windows 10/11
Remark: to remove any restrictions on Windows 10/11, operating system, right-click on the setup icon and select the option
“Run as Administrator”. Then select Yes to continue with the installation from the next window “User Account Control”.
6.1.1 INSTALLATION SOFTWARE
1.Insert the “S8 DSP setup” USB setup device in the specific drive on the PC you wish to use.
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Windows 10/11

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4.Windows 10/11: select Next to go on with the installation, Cancel to interrupt it.
5.Windows 10/11: select Next to go on with the installation, Cancel to interrupt it.
6.Windows 10/11: select Install to go on with the installation, Cancel to interrupt it.
Windows 10/11
Windows 10/11
Windows 10/11
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USER’S MANUAL /
7.Windows 10/11: follow and complete the installation procedure and select Finish at the end of the installation.
6.The PC software is now installed in your system.
Windows 10/11
6.1.2 SOFTWARE UNINSTALL
To uninstall the S8 DSP PC Software for WINDOWS you can follow the below procedure:
Windows 10/11: Start/Settings/App/S8 DSP/Uninstall.
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6.2 macOs
6.2.1 INSTALLATION macOs
1.Search for S8 DSP on the Apple App Store then select “Get” and “Install”.
MacOs
6
GET
S8 DSP Mobile
Elettromedia SRL
Web site
Support
The S8 DSP Mobile App allows the user to manage the S8 DSP signal interface
processor from smartphone /tablet.
Ratings and reviews

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USER’S MANUAL /
6.3 S8 DSP APP INSTALLATION ON MOBILE DEVICES
2.Scan the QR code printed on the giftbox to access the download
web page:
Installation from Gloogle Play Store
• Select to access the Google Play Store page
where the S8 DSP Mobile app is listed, then press “Install”.
• Installation from Hertz website.
Select ,to access the product
page, download the latest version of the S8 DSP Mobile app
available, at the end of the download press “Install”.
2.Scan the QR code printed on the giftbox to access the download web
page, select to access Apple App Store page where the app
S8 DSP Mobile is listed ,then select “Get” and “Install”
6.3.1 ANDROID
1.Search for S8 DSP Mobile on Google Play Store then select “install”.
6.3.2 APPLE iOS
1.Search for S8 DSP Mobile on the Apple App Store then
select “Get” and “Install”.
The S8 DSP Mobile App allows the user to
manage the S8 DSP signal interface processor
from smartphone /tablet.
The S8 DSP Mobile App allows the user to manage
the S8 DSP signal interface processor from
smartphone/tablet.
App info
Evaluate this App
Let others know your opinion.
Tools
Install
6
GET
S8 DSP Mobile
Elettromedia SRL
S8 DSP Mobile

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USER’S MANUAL /
7. S8 DSP SET UP WITH PC/MAC
To adjust the S8 DSP functions a software is required. The processor needs to be connected to the PC/MC and turned on.
After installing the software, start it by selecting the icon shown on your desktop.
The first window is the startup page where one of the following modes needs to be selected:
-CONNECT - USB, connects the S8 DSP to the PC/MAC via USB;
-CONNECT - BT, allows the connection in bluetooth mode with the PC/MAC (if available);
-OFFLINE, demo mode.
In this case even if the S8 DSP processor is connected to the PC/MAC, it does not interact with the software. The OFFLINE
mode can be used to work on the software to get familiar with the processor multiple functions without connecting
the S8 DSP to the PC/MAC and it is possible to open a saved setup*.s8c or simulate three different configurations:
motorcycle, car, free placement. For the specific functions (see section 7.5.1)
- Select Create new setup to start the software in demo mode.
-Select Open a saved setup to start the software with a saved setup.
-Select BACK to go back to the start window.
1
2
7.1 OFFLINE MODE
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Select the desired option by clicking on the reference image.
-press Next to access the control window
-press Back to go back to the main window
7.1.1. CREATE NEW SETUP
Select Create new setup, to access the System Selection menu where you can select one of the below options:
1. Motorcycle: to simulate a system installed in a motorbike.
2. Car: to simulate a system installed in a car.
3. Free placement: to simulate a system with free placement.
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-How does the S8 DSP software look like when starting up in Motorcycle OFFLINE mode.
-How does the S8 DSP software look like when starting up in Car OFFLINE mode.
Remark: in the CAR option the driving side can be set up:
Left drive for left-hand drive car (default).
Right drive for right-hand drive car.
-How does the S8 DSP software look like when starting up in Free placement OFFLINE mode.
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