S8 DSP USER’S MANUAL Digital Interface Processor rev. 1a hertz-audio.
USER’S MANUAL / Index 1. 2. 3. 4. PRODUCT DESCRIPTION...................................................................................................................................................................................3 PACKAGING CONTENT......................................................................................................................................................................................4 S8 DSP INSTALLATION........................................................
USER’S MANUAL / 1/2 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.
USER’S MANUAL / 3 3. S8 DSP INSTALLATION Mounting dimensions External dimensions 118 mm / 4,6 in. 40,5 mm / 1.59 in. 36,8 mm / 1.44 in. 88,3 mm / 3.47 in. 130 mm / 5.11 in.
USER’S MANUAL / 4 4. CONNECTIONS PANEL - DESCRIPTION 7 1 6 2 3 5 4 1 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. 2 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.
USER’S MANUAL / 4 4 PWR/REM: The cable is provided to manage the power supply and the various control connections. 190 mm / 7.48 in. REAR VIEW Pink Black White White Blue/White Yellow 6 mm 0.23 in. Blue IN SEL MEM GND MEM/SEL1 Pink Black MEM/SEL2 White REM IN REM OUT Black 1A White White/Blue Blue + BATT Yellow GND Black FUSE WIRE SIZE 20 AWG •+ BATT (7÷20 VDC): terminal for connecting the positive power supply pole to S8 DSP.
USER’S MANUAL / 4 5 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. 200 mm / 7.87 in. OUT 8 REAR VIEW OUT 8 + OUT 8 - OUT 7 + OUT 7 - OUT 6 + OUT 6 - OUT 5 + OUT 5 - OUT 4 + OUT 4 - OUT 3 + OUT 3 - OUT 2 + OUT 2 - OUT 1 + OUT 1 - 6 mm 0.23 in. OUT 7 OUT 6 OUT 5 OUT 4 OUT 3 OUT 2 WIRE SIZE 20 AWG OUT 1 6 PRE IN - DIGITAL IN: •PRE IN.
USER’S MANUAL / 4 7 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. 190 mm / 7.48 in.
USER’S MANUAL / 5 5. CONNECTIONS 5.1 POWER SUPPLY AND REMOTE TURN ON YELLOW PWR/REM BLACK FUSE HOLDER (1A) BLUE BLUE/WHITE REM IN REM OUT from HEAD UNIT to Amplifier REMOTE IN IN SEL * WHITE MEM SEL 1 * WHITE MEM SEL 2 * BLACK MEM GND PINK *not supplied How to turn the S8 DSP on and off The S8 DSP is on when the logo is lit green. It can be turned on/off using the following methods: 1.
USER’S MANUAL / 5 1 2 3 4 5 6 7 5.2 INPUT SIGNALS PWR/REM 5.2.1 PRE IN - CH1/CH6 STEREO ANALOG SIGNAL 1 2 3 4 5 6 7 After market Source PWR/REM IN 6 L IN 5 R IN 4 L IN 3 R IN 2 L IN 1 R IN 6 L IN 5 R SUB REAR FRONT After market Source IN 4 L IN 3 R IN 2 L IN 1 R SUB REAR FRONT 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.
USER’S MANUAL / 5 5.2.3 SPEAKER IN - CH1/CH6 (HIGH LEVEL) 1 2 3 4 5 6 PWR/REM After market Source ART (Automatic Remote Turn-on) only on IN 1 (+/-) - IN 2 (+/-) Connect to other HI-LEVEL OUTPUT signal if avaiables FL IN 1 + FR IN 2 + RL IN 3 + RR IN 4 + IN 1 IN 2 IN 3 IN 4 - IN 5 + IN 5 IN 6 + IN 6 - 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.
USER’S MANUAL / 5 CH 8 CH 7 CH 8 AMPLIFIER CH 7 AMPLIFIER CH 6 AMPLIFIER CH 5 CH 4 CH 3 CH 2 CH 1 AMPLIFIER CH 5 ÷ CH 6 CH 1 ÷ CH 4 5.
USER’S MANUAL / 6 6. GUIDE FOR INSTALLING S8 DSP SOFTWARE 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 6.1 PC WINDOWS 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. 2. Windows 10/11: access Computer from the Windows menu. Windows 10/11 3.
USER’S MANUAL / 6 4. Windows 10/11: select Next to go on with the installation, Cancel to interrupt it. Windows 10/11 5. Windows 10/11: select Next to go on with the installation, Cancel to interrupt it. Windows 10/11 6. Windows 10/11: select Install to go on with the installation, Cancel to interrupt it.
USER’S MANUAL / 6 7. Windows 10/11: follow and complete the installation procedure and select Finish at the end of the installation. Windows 10/11 6. The PC software is now installed in your system. 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.
USER’S MANUAL / 6 6.2 macOs 6.2.1 INSTALLATION macOs 1. Search for S8 DSP on the Apple App Store then select “Get” and “Install”. S8 DSP Mobile GET The S8 DSP Mobile App allows the user to manage the S8 DSP signal interface processor from smartphone /tablet.
USER’S MANUAL / 6 6.3 S8 DSP APP INSTALLATION ON MOBILE DEVICES 6.3.1 ANDROID 1. Search for S8 DSP Mobile on Google Play Store then select “install”. S8 DSP Mobile Install 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.
USER’S MANUAL / 7 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.
USER’S MANUAL / 7 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. Select the desired option by clicking on the reference image.
USER’S MANUAL / 7 - 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.
USER’S MANUAL / 7 7.1.2. OPEN A SAVED SETUP This function loads the complete configuration of the S8 DSP from a previously saved file (.“S8 DSP setup file.s8c”). 7.2 CONNECT USB MODE To use this function the S8 DSP processor must be turned on and connected to the PC/MAC. The connection between PC/MAC and S8 DSP can be established via USB cable or Bluetooth. 7.2.1 CONNECTION VIA USB CABLE 1. Start the device (green led status, BT blue led flashing) 2.
USER’S MANUAL / 7 4. The software will start with S8 DSP connected via USB. Important remark If S8 DSP is not detected: - check that S8 DSP is on and correctly connected to the PC/MAC via USB cable USB (aqua green led status, BT led off) - press Close to go back to the main window.
USER’S MANUAL / 7 7.3 CONNECT BT MODE 1. Start S8 DSP (green led status, blue BT led flashing). 2. Enable the Bluetooth function on the PC/MAC. 3. Press Connect - BT to open the pop up Select a BT device, and start the search for the S8 DSP processor. - press Close to stop the search. 4. Select a BT device: at the end of the search one or more S8 DSP will be detected,“ie.S8 DSP-XXXX” (XXXX is the identification number of the S8 DSP) - press on the name ie. S8 DSP-XXXX to select the processor.
USER’S MANUAL / 7 After selecting S8 DSP, a pop up with the processor’s name will appear - press Connect to go ahead with the S8 DSP direct connection. - press Identify to check if the processor you intend to connect to is the one you want (in the case of multiple S8 DSP previously detected). SPEAKER IN PRE IN - DIGITAL IN The status LED of the selected S8 DSP will start flashing green. - press Connect to connect the S8 DSP. - press Stop to return to the previous screen.
USER’S MANUAL / 7 7.4 S8 DSP DEFAULT SETUP By default, the S8 DSP is configured as shown below: After market Source FRONT L IN 1 R IN 2 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 PWR/REM AMPLIFIER AMPLIFIER CH 8 CH 7 CH 5 ÷ CH 6 CH 1 ÷ CH 4 AMPLIFIER TW FL CH 6 CH 5 CH 6 CH 5 CH 4 CH 3 CH 2 CH 1 AMPLIFIER TW FR WF FL WF FR Coax RL Coax RR Centre Subwoofer 7.4.1 INPUTS Pre In - CH1-CH2 7.4.
USER’S MANUAL / 7 7.5 I/O CONFIGURATION WIZARD Before starting the “I/O Configuration Wizard” connect the source loudspeakers’ outputs to the SPEAKER IN input (see section 5.2.3) or the source PRE OUT outputs to the S8 DSP PRE IN input (see section 5.2.1). At this point it is necessary to know in advance the system to be implemented, since later, to change these selections, you will have to run the guided procedure In particular, the wizard will request: - What system will S8 DSP be installed on.
USER’S MANUAL / 7 7.5.1. SYSTEM SELECTION It is possible to configure S8 DSP in 3 different types of system: - Motorcycle: this option provides the ability to configure the S8 DSP for a system installed on a motorcycle. - Car: this option provides the ability to configure S8 DSP for a system installed in a car. Remark: in the CAR system the driving side can be selected: Left drive: left-hand drive car(default setting) Right drive: right-hand drive car.
USER’S MANUAL / 7 7.5.2. SPEAKER SELECTION Motorcycle / CAR option In Motorcycle or Car mode, through the appropriate screen, you can select the speakers in your system, to be activated or deactivated by clicking on them. The software assumes that if you select the left tweeter, midrange, woofer or coaxial, the right ones will also be activated automatically. This choice will affect the type of dedicated crossover. E.g.
USER’S MANUAL / 7 7.5.3. PASSIVE CROSSOVER SELECTION - OUTPUT CHANNELS ASSIGNMENT / OUTPUT CHANNELS NAME - Passive crossover selection: In Motorcycle or Car mode it is possible to indicate the presence of passive crossovers by enabling the 2Ways / 3Ways options. E.g.
USER’S MANUAL / 7 - Output channels assignmet In Motorcycle or Car mode it is possible to change the order in which the outputs of the S8 DSP have been automatically assigned by the software. The software will report if in the event of an error the same output will be assigned to multiple speakers, in this case the vehicle image will turn from white to red and the NEXT button will disappear from the screen, until the correct assignment of the outputs.
USER’S MANUAL / 7 - Output channels names In Free Placement mode it is possible to rename each output channel with a maximum of 15 characters, so as to facilitate their recognition while using the software. - press Next to continue with the configuration. - press Back to go back to the previous window. - press Cancel to cancel the operation. 7.5.4.
USER’S MANUAL / 7 7.5.5 ANALOG INPUTS-OUTPUTS ROUTING It is a mixer in which it is possible to view and / or modify the assignment of the input signals on each output channel (this means that an input channel can be sent to one or more output channels and vice versa), and adjust the mixing percentages.
USER’S MANUAL / 7 3 ROUTING/PRESET: it is possible to assign inputs to outputs in two ways (STEREO) or (CUSTOM). STEREO (default) does not allow to operate on the mixer. The system will be configured using the inputs In1 and In2, the assignment to the outputs is automatic and cannot be changed. Input In1 will be assigned to the Left outputs; The In2 input will be assigned to the Right outputs; while the mono outputs (E.g.
USER’S MANUAL / 7 4 MIXER: It is possible to assign the mixing percentages of the inputs in two ways: (Auto/Man). It is possible to switch from the Mixer Auto mode (default), to the Mixer Man mode and vice versa clicking on the Auto or Man keys, upon clicking a warning pop up will appear on the screen. Switching from Mixer Auto mode to Mixer Man mode - select “Don’t ask again in this session” to stop showing this pop up in this work session. - press OK to switch mode.
USER’S MANUAL / 7 WARNING: in the case of the mixer configuration in MAN mode, the software removes the control on the maximum value of the sum of the input signals. Therefore, when the 100% threshold is exceeded (risk of output distortion) a pop-up will appear to confirm the operation. - press OK to switch mode. - press Cancel to cancel the operation. - select “Don’t ask again in this session” to stop showing this pop up in this work session.
USER’S MANUAL / 7 1 2 3 4 Input clipping indicator. When the LED lights up, it signals the presence of clipping on the selected input. By operating on one of the sliders, it will be possible to adjust the sensitivity of each input. Indicator of the sensitivity level of each individual input channel, referred to the position of the slider indicated above.
USER’S MANUAL / 7 3 1 4 2 7 5 8 6 9 10 11 12 13 14 1 Volume: by operating on the “Volume” slider, you can make adjustments to the overall system output level (-60 ÷ 0 dB). 2 Mute: by clicking on the “Mute” button it is possible to mute the output channels. Click the “Mute” button again to disable the function. 3 Input Channel: by clicking on the drop-down menu, you can select the input channel you intend to equalize.
USER’S MANUAL / 7 7.5.8 WIZARD COMPLETED System setup is complete. - Press DONE.
USER’S MANUAL / 8 8. S8 DSP SETUP USING A PC/MAC The software transfers the settings selected during the wizard to the processor’s main memory. If you are using S8 DSP when connecting for the first time it is advisable to FINALIZE the product, to avoid losing the data stored during the calibration phase (see section 8.1.5). At this point the S8 DSP has the correct basic configuration. The functions that allow the acoustic tuning of the system will be described in the following paragraphs.
USER’S MANUAL / 8 8.1 MAIN MENU “FILE” 1 By clicking on the relevant button a drop-down menu opens up with the items shown in the figure. 1 2 3 4 5 6 7 1. Load this function loads the complete configuration of the S8 DSP from a previously saved file (E.g. “S8 DSP setup file.s8c”). This function is available in both CONNECT and OFFLINE mode. In CONNECT mode this function has the purpose of being able to reload all the settings previously saved.
USER’S MANUAL / 8 4. Reset to factory default this function performs a total reset of the S8 DSP returning the product to its original conditions, deleting all the data previously saved in the processor. Press YES to perform the factory default reset. Press No to interrupt the operation. WARNING: the reset restores the system currently used to the default conditions (see section 7.4). 5.
USER’S MANUAL / 8 6. Bluetooth This function is used to connect, disconnect, or remove the automatic connection of the S8 DPS to the PC / MAC software. This function is active if: 1. one or more S8 DSPs turned on nearby are detected (the BT symbol will appear at the top right of the screen “Device Info”) (see section 8.11) 2. S8 DSP is already connected to the software via Bluetooth connection. WARNING: the Bluetooth function is disabled: - if no S8 DSP is detected nearby.
USER’S MANUAL / 8 2. Select a BT Device: at the end of the scan, one or more S8 DSPs will be detected,“E.g. S8 DSP-XXXX” (XXXX is the identification number of the S8 DSP) - click on the name E.g. S8 DSP-XXXX to select the processor. Remark: in the case of more processors available it will be possible later with the Identify function to check if the selected S8 DSP is the one you want. - press Close to interrupt the operation.
USER’S MANUAL / 8 If the PIN entered is correct, you will be asked how to connect to the software. - Press Stay offline to suspend the connection and continue working on the software with the S8 DSP not connected. - Press DSP to PC/MAC to load the settings stored in the S8 DSP memory onto the software. - Press PC/MAC to DSP to load the settings made so far on the software into the memory of the S8 DSP. 6.
USER’S MANUAL / 8 7. Help Languages: to change the language, select the desired item from the menu, among the available ones. Check Update (online): this function checks the presence of S8 DSP software / firmware updates by connecting to the “hertz-audio.com” site (see section 9.2). In order to perform this operation, the PC must have an active internet connection.
USER’S MANUAL / 8 2 Analog inputs configurations 2 3 1 1 Analog Input It is possible to select the type of analog input used: RCA (PRE IN) or High Level (SPEAKER IN) (see section. 7.5.4). 2 I/O Routing It is possible to change the assignment of the input channels on each output channel and adjust the mixing percentage (see section. 7.5.5). 3 Sensitivity It is possible to calibrate the correct sensitivity of the S8 DSP inputs to adapt them to the signal coming from the source.
USER’S MANUAL / 8 4 Digital Input Digital input functions • Automatic switch to digital input: by activating this function it is possible to select the optical digital input automatically when the digital audio signal is detected. • Extra gain: it is possible to set the gain of the optical digital input to +0dB (default), + 3dB, +6dB. 5 Outuput channel names It is possible to name each output channel with a maximum of 15 characters.
USER’S MANUAL / 8 6 Output Limiter By activating this function it will be possible to enable the signal limiter on the S8 DSP output. This function is essential to compensate for transient clipping phenomena, which lead to saturation of the outputs. The function is disabled by default. It is possible to activate this function by clicking on Output limiter (a check mark V will appear). Clicking again on Output Limiter the function will be disabled.
USER’S MANUAL / 8 2. Remote It is possible to manage the ART function (Auto Remote Turn-On) and the turn on and off settings of the S8 DSP. ART (Auto Remote Turn-on) Turn on delay Shut of delay - press Back to go back to the settings menu. - press Close to interrupt the operation and go back to the main window. ART (Auto remote turn-on) It provides the ability to turn on S8 DSP through the amplified output (BTL) of a source connected to the SPEAKER IN Ch1-Ch2 inputs.
USER’S MANUAL / 8 Shut off delay it is the delay between the deactivation of the REMOTE OUT signal towards the amplifiers and the switching off of the S8 DSP. It is generally not necessary to act on this parameter but it can be useful if you have amplifiers that produce a “Bump” when turned off. - press Back to go back to the Remote menu. - press Close to go back to the main window. 3.
USER’S MANUAL / 8 8 Bluetooth PIN It provides the ability to manage the PIN for the connection between S8 DSP and the PC/MAC. By selecting No on the Enabled drop-down menu, the 6-digit pin request for the bluetooth connection is disabled. By selecting Yes on the Enabled drop-down menu, the 6-digit pin request for the bluetooth connection is enabled.
USER’S MANUAL / 8 8.3 MAIN MENU “MEMORY” 3 The S8 DSP manages the system configuration by working by default on memory A, giving the ability to save and recall four memories (A, B, C, D). (see section.8.10) In the memories the following data will be stored: - the filter, time delay and phase settings for each channel; - the equalization settings for each output channel; - the output levels of the individual channels.
USER’S MANUAL / 8 3 Reset current memory file: It restores the crossover, equalization and volume levels of the standard outputs, those that would be proposed at the end of the configuration procedure. - press Yes to confirm. - press No to cancel. - press Back to go back to the Memory menu. - press Close to go back to the main window. 4 8.
USER’S MANUAL / 8 8.6 CROSSOVER SETTINGS 3 6 S8 DSP manages 8 crossovers, one for each output channel. Each filter allows you to adjust all the parameters relating to the channel highlighted in the Channel List. 4 5 6 2 1 Xover L/R Link: with the option enabled, the changes applied to one of the channels (right or left) will automatically be made to the other as well. Xover L/R Link affects all Crossover Settings except Set Distance (Delay).
USER’S MANUAL / 8 5 Filter Slope: By clicking on the drop-down menus you can select the slope of the filter/sI applied to the selected output channel. - Hi-P Slope: 0/6/12/18/24/30 dB/Oct. (Butterworth) 0/6/12/18/24/30 dB/Oct. (Bessel) 0/12/24 dB/Oct. (Linkwitz) - Lo-P Slope: 0/6/12/18/24/30 dB/Oct. (Butterworth). 0/6/12/18/24/30 dB/Oct. (Bessel). 0/12/24 dB/Oct. (Linkwitz). When starting the software, the S8 DSP proposes Butterworth with a standard slope of 12 dB/Oct.
USER’S MANUAL / 8 6 SET DISTANCE E DELAY: This setting is based on an automatic system that allows you to calculate the time it takes for the sound of the speaker to reach the ear. Preliminary Remarks sound moves through the air at a speed of 343 m/sec (1,125 ft / sec.) at a temperature of 20 ° C (68 ° F). If you know the distance of the sound emission point, it is therefore possible to calculate the time it takes for the sound to reach the ear.
USER’S MANUAL / 8 Example: 110 cm setting of time delays on a car (Fig.3). 1. Select the system listening point. To locate the listening point, choose 106 cm 116 cm an ideal point positioned in the center of the listener’s head (driver or passenger). For the front and rear center points, choose an intermediate 90 cm 100 cm point between the two listeners. 2.
USER’S MANUAL / 8 EQ Fine Tuning parametric adjustment. It is possible to change the parameters of each equalizer band clicking with the right mouse button on the slider, after that “fine tuning” will appear next to it, then click with the left button on the wording to open the “EQ Fine Tuning” menu. 1 in this part of the screen the name of the output channel being equalized is displayed.
USER’S MANUAL / 8 8.9 SELECT INPUT 9 The window will show and give the possibility to select the active input source when connecting with the PC/MAC. 8.10 MEMORY 10 The S8 DSP manages the system configuration by working by default on memory A, but provides the ability to save and recall four memories (A, B, C, D). 8.11 DEVICE INFO 11 This window shows: ● if you are using the software in STANDARD or EXPERT mode (see section. 8.2.9) ● if the ART function is activated (see section. 8.2.7.2.
USER’S MANUAL / 9 9. TROUBLESHOOTING 1. S8 DSP operating problems If, when calibrating the system with S8 DSP connected to a PC/MAC there are operating problems, try disconnecting the PC/MAC power supply cable. With the PC/MAC working on battery power you avoid a possible voltage difference in the USB ground between the processor and the ground (PC). 2.
USER’S MANUAL / 9 9.2 FIRMWARE UPGRADE If there are product UPGRADES available online, proceed as follows: - Save the previous setup (if you wish to consult it in OFFLINE mode); 1. Start the S8 DSP software 2. Access the “Help” menu and select “Check updates” 3. When selecting “Check updates”, if there are updates available, the following window will appear: - press Yes to open the internet browser on the PC/MAC where the search for the HERTZ download area will automatically start.
USER’S MANUAL / 9 - close the window, perform a “safe removal of hardware and eject media” to eject the USB device “HERTZS8DSP (X :)”; - disconnect the USB from the processor 7. Turn S8 DSP on - Start the PC/MAC software and connect the processor (see section.7.2 - .7.3) - Check that the firmware version (FW: v. Xx.xx.xx) on the “Device Info” window corresponds to the one previously downloaded and copied into the processor (“Hertz_S8_DSP_xx_xx_xx.dsp”).
USER’S MANUAL / 10 10.
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