Advertisement

Quick Links

HMD8 DSP
USER'S
MANUAL
rev. 1
hertzaudiovideo.com

Advertisement

Table of Contents
loading

Summary of Contents for Hertz Marine HMD8 DSP

  • Page 1 HMD8 DSP USER’S MANUAL rev. 1 hertzaudiovideo.com...
  • Page 2: Table Of Contents

    USER’S MANUAL HMD8 DSP/ Index 1. PRODUCT DESCRIPTION / PRECAUTIONS ........................... 3 2. PACKAGE CONTENTS ................................4 3. HMD8 DSP INSTALLATION ..............................5 3.1 DEVICE INSTALLATION ..............................5 4. CONNECTION PANEL DESCRIPTION ............................. 6 1 POWER ....................................6 2 FUSE ....................................7 3 CTRL (REM IN-OUT.
  • Page 3: Product Description / Precautions

    For maximum performance, we highly recommend that you have your new amplifier installed by an authorized Hertz dealer. Your authorized dealer has the training, expertise and installation equipment to ensure optimum performance from this product. Should you decide to install the amplifier yourself, please take the time to read this manual thoroughly so as to familiarize yourself with its installation requirements and setup procedures.
  • Page 4: Package Contents

    USER’S MANUAL HMD8 DSP/ 2. PACKAGE CONTENTS - HMD8 DSP amplifier CONTROL 1 - Multipolar cable, Rem/Control: CONTROL 2 REM IN REM OUT IN 6 IN 5 IN 4 - Multipolar cable, Input Pre-IN: IN 3 IN 2 IN 1 IN 6 IN 5 IN 4...
  • Page 5: Hmd8 Dsp Installation

    Additional steps and different procedures may be required in some applications. If you have any questions, please contact your authorized Hertz dealer for assistance. 1. Disconnect the negative battery post connection and secure the disconnected cable to prevent accidental re-connection during installation.
  • Page 6: Connection Panel Description

    USER’S MANUAL HMD8 DSP/ 4. CONNECTION PANEL - DESCRIPTION HMD8 DSP POWER UPGRADE OPTICAL IN PRESETS OFF ON HMD8 DSP FUSE x 2 CTRL SPEAKER OUT SPEAKER IN SUB OUT PRE IN POWER. + Power (11-15 VDC or 22-34 VDC according to POWER silk-screened value): connection terminal for power supply positive pole.
  • Page 7: Fuse

    USER’S MANUAL HMD8 DSP/ FUSE 30 A blade protection fuse for 12V power supply or 15 A blade protection fuse for 24V power supply. In case the fuse needs to be replaced, use same type and value as the original. 2 X 30A (HMD 8 DSP 12V) 2 x 15A...
  • Page 8: Speaker Out

    USER’S MANUAL HMD8 DSP/ SPEAKER OUT. HMD8 DSP is provided with a 16 pole multipolar connector to manage the power output signals. 320 mm / 12.6 in. FRONT VIEW 10 mm 0.39 in. OUT 1 + OUT 1 - OUT 2 + OUT 2 - OUT 3 + OUT 3 -...
  • Page 9: Sub Out

    USER’S MANUAL HMD8 DSP/ SUB OUT. Pre-amplified output subject to low pass filtering optimized to drive a mono amplifier for an external subwoofer or active subwoofer. OPTICAL IN. HMD8 DSP accepts at its input PCM signals up to 192 kHz / 24 bit sampling frequency rate. Connect a fiber optic cable with a TOSLINK connector.
  • Page 10: Connections

    USER’S MANUAL HMD8 DSP/ 5. CONNECTIONS POWER SUPPLY AND REMOTE TURN ON HEX KEY 2,5 mm POWER PRESETS UPGRADE OPTICAL IN OFF ON 15 mm / 0.6 in. HMD8 DSP FUSE x 2 CTRL SPEAKER OUT SPEAKER IN SUB OUT PRE IN 8 AWG Max EXTERNAL SUBWOOFER...
  • Page 11: Memory Selection Switch

    USER’S MANUAL HMD8 DSP/ MEMORY SELECTION SWITCH Together with the amplifier, a three-position switch is provided for manual selection of memories. The connection scheme is shown in the image below. CONTROL CONNECTION CABLE Memory 3 CTRL2 Brown CTRL 2. Blue REM IN Memory 1 Pink...
  • Page 12: Digital Optical In Input Signals

    USER’S MANUAL HMD8 DSP/ 2. PRE INPUT ZONE 1 + ZONE 2 POWER UPGRADE OPTICAL IN PRESETS OFF ON HMD8 DSP FUSE x 2 CTRL SPEAKER OUT SPEAKER IN SUB OUT PRE IN After market Source IN 1 ZONE 1 IN 2 IN 3 ZONE 2...
  • Page 13: Output Signals

    USER’S MANUAL HMD8 DSP/ OUTPUT SIGNALS POWER UPGRADE OPTICAL IN PRESETS OFF ON HMD8 DSP FUSE x 2 CTRL SPEAKER OUT SPEAKER IN SUB OUT PRE IN OUT 1+ 16: White 8: White/Black OUT 1- 15: White OUT 2+ OUT 2- 7: White/Black 14: White OUT 3+...
  • Page 14: Pc Connection

    USER’S MANUAL HMD8 DSP/ PC CONNECTION 1. HMD8 DSP connection with PC HMD8 DSP USB cable (provided)
  • Page 15: Configuration Software

    This section describes the main features of the configuration software: Navigator. The software was designed to be adopted by all products with onboard DSP in the Hertz marine catalog and future ones: when you connect the device to the software, it automatically configures itself to display the interface of that specific device connected.
  • Page 16: Save And Load The Configuration

    USER’S MANUAL HMD8 DSP/ SAVE AND LOAD THE CONFIGURATION The software provides the ability to save the current configuration to a file, upload one already saved on your PC and other important features. These are available on the top command bar, as shown in the image below. OPEN Load configuration from a file saved on the PC.
  • Page 17: Audio Setup

    USER’S MANUAL HMD8 DSP/ Settings The image below shows the general settings panel: Sampling frequency: allows you to set the sampling frequency used by the audio processor (DSP). Language: allows you to set the software interface language. Unit of measure: allows you to set the unit of measurement choosing between centimeters (cm) or inches (in). WARNING: the DSP mounted on this device is capable of processing the signal only at 48 kHz.
  • Page 18 USER’S MANUAL HMD8 DSP/ 6.4.1.3 OUTPUT CHANNELS DEFINITION The output channels represent the points where the sound is reproduced, i.e. where the speakers are physically connected. Ultimately, the output configuration is the one that most characterizes the audio system. It is important to have the system project clearly in mind before starting: the type and the position of loudspeakers, the need for bridged channels, how many listening areas must be created.
  • Page 19: Sources

    USER’S MANUAL HMD8 DSP/ 6.4.1.8 MEMORIES CONFIGURATION The memories act on all the output channels and serve to give a particular nuance setting to the system. Unlike the previous settings which are an essential and fixed part of the setup, the memory can be activated or deactivated by the end user while listening.
  • Page 20: Input Channels

    USER’S MANUAL HMD8 DSP/ 6.4.3 INPUT CHANNELS The Input channels depend directly on the currently selected source. Each source has its number of inputs and its type of inputs. In this amplifier the input channels are analog for the MASTER source and digital for the OPTICAL source.
  • Page 21 USER’S MANUAL HMD8 DSP/ • DIGITAL INPUT CHANNELS The image below shows the inputs panel for the OPTICAL source. Remark: for digital input channels sensitivity should not be adjusted. The image below shows one of the input settings panels for the OPTICAL source. The input channel can be: •...
  • Page 22: Output Channels

    USER’S MANUAL HMD8 DSP/ 6.4.4 OUTPUT CHANNELS The output channels represent the fundamental elements of the audio system: in the final analysis they can be considered like installed speakers. In the software, each channel has a color associated with it: when a specific channel is selected, the graphic interface elements that concern it take up that same color.
  • Page 23: Output Channel Groups

    USER’S MANUAL HMD8 DSP/ 6.4.5 OUTPUT CHANNEL GROUPS Each output channel can be associated with one or more groups. If the output channel is associated with one or more groups, its volume will also be adjusted according to the volumes of the associated groups. The association with the groups can be performed in the output channel settings panel.
  • Page 24: Listening Zones

    USER’S MANUAL HMD8 DSP/ 6.4.6 LISTENING ZONES The idea behind the zones is to provide the possibility to divide the output channels when they are spatially distant from each other so much as to consider them in different environments. The division into zones is therefore justified if the layout of the output channels is distributed over different environments.
  • Page 25: Mixer

    USER’S MANUAL HMD8 DSP/ 6.4.7 MIXER The mixer allows you to adjust the mixing percentage of the input channels on each output channel. The mixer is accessible through the top command bar. To exit the mixer, press the related button again. The image below shows the graphic interface of the mixer.
  • Page 26: Delays And Distances

    USER’S MANUAL HMD8 DSP/ 6.4.8 DELAYS AND DISTANCES This setting is based on an automatic system that calculates the time needed for the sound to get from the speaker to the listener’s 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 from the sound emission point, you can then calculate the time the sound takes to get to the listener’s ear.
  • Page 27 USER’S MANUAL HMD8 DSP/ • DISTANCES The image below shows the output channels panel and the functions relating to the speakers position. Loudspeaker position panel: open the output channel position panel. Remark: the loudspeaker position panel should be set for each zone that contains output channels. Loudspeaker distance: shows the distance of the speaker from the center of the listening area.
  • Page 28 USER’S MANUAL HMD8 DSP/ • LOUDSPEAKER POSITION PANEL The image below shows the loudspeaker position panel and its functions. Maximum distance limit: this function is not active by default. When activated the possibility of moving the loudspeakers is reduced within the red dashed line. This limit represents the maximum loudspeakers distance allowed from the DSP delay lines;...
  • Page 29: Crossover

    USER’S MANUAL HMD8 DSP/ 6.4.9 CROSSOVER With the crossover section it is possible to set different bands for every output channel. Remark: the output channel you are acting on is indicated by the foreground color of the crossover panel. The image below shows the crossover parameters that it is possible to set: Type: allows you to choose the type of crossover.
  • Page 30 The last option to select is the cut-off frequency. It is possible to set it by using the knobs or writing the frequency directly in the text box below the knobs. Remark: all the frequencies are in hertz (Hz). The minimum and maximum value for frequencies is 20Hz and 20000 Hz respectively.
  • Page 31: Equalizer

    Copy panel: open the equalizer copy panel. Help: to open the user guide. Remark: all the frequencies are in hertz (Hz) and all the gains are in decibel (dB). Remark: the output you are acting on is indicated by the foreground color of the equalizer panel.
  • Page 32: Memories

    USER’S MANUAL HMD8 DSP/ After selecting the filter type it is possible to set the Gain, Frequency and the Form factor (Q), except for Flat where it is not possible to set any parameters. The minimum and maximum Gain is -12 dB and +12 dB. For Notch or All-pass the gain is set to 0 dB and cannot be changed.
  • Page 33 USER’S MANUAL HMD8 DSP/ • MEMORIES SETTINGS PANEL The image on the side shows the settings panel for the memories. The memories can be: • renamed; • disabled / enabled. WARNING: when a memory is disabled it is definitively unusable. It is not possible to rename or customize it.
  • Page 34 Reset button: restore to default values all sections of current equalizer. Help: to open the user guide. Remark: all the frequencies are in hertz (Hz) and all the gains are in decibel (dB). • GRAPHIC EQUALIZER With the graphic equalizer it is possible to set only the gain for every band, from -12 dB to +12 dB: The central frequency of each band is indicated above the slider and the gain can be set with the slider or using text box below the slider.
  • Page 35 USER’S MANUAL HMD8 DSP/ • PARAMETRIC EQUALIZER With the parametric equalizer it is possible to set more parameters for every section than the graphic equalizer. WARNING: the parameters of a section of the parametric equalizer are linked to each other. When a parameter is changed, it may cause changes to other parameters.
  • Page 36 USER’S MANUAL HMD8 DSP/ Memory volume 6.4.11.2 The selected memory allows this further customization for the output channels volumes. Remark: this function is applied to the output channels only when the memory is selected. Delta volume checkbox: allows you to enable or disable this additional feature of the selected memory. Reset button: restore all sliders to 0 dB.
  • Page 37 USER’S MANUAL HMD8 DSP/ Memory delay 6.4.11.3 The selected memory allows this further customization for the output channels delays. Remark: this function is applied to the output channels only when the memory is selected. Delays checkbox: allows you to enable or disable this additional feature of the selected memory. Reset button: restore all the delays of the selected memory to 0 ms.
  • Page 38: Graph

    1 GRAPH The Graph displays the frequency response of the output channels. On the x-axis there is the frequency in hertz (Hz), represented with a logarithmic scale; on the y-axis the amplitude of the signal is represented in decibels (dB).
  • Page 39 USER’S MANUAL HMD8 DSP/ 3 GRAPH RESIZE When the graph resize button is clicked, the graphic layout adopted by the software is shown in the image below. As you can see, the input channels panel and the zone volume panel are hidden, while the output channels panel takes on a reduced graphic layout.
  • Page 40: Work Notes

    USER’S MANUAL HMD8 DSP/ 6.4.13 WORK NOTES The Work Notes panel allows you to capture a snapshot of the whole current configuration. This function makes a copy of the current configuration to the clipboard. The images below show the Work Notes panel both when it is empty and when it contains snapshots. Camera button: allows you to take a snapshot of the current configuration.
  • Page 41: Extended Functionalities

    USER’S MANUAL HMD8 DSP/ EXTENDED FUNCTIONALITIES The software dynamically reshapes depending on the device to which it connects. During synchronization, the device communicates the current configuration but also the details inherent to the functionalities it implements. These functionalities are divided between Wizards and Features (see sec.
  • Page 42: Features

    USER’S MANUAL HMD8 DSP/ 6.5.2 FEATURES Within this group are instead all the extensions that can be activated or deactivated by the user during system operation. Remark: HMD8 DSP does not implement any features. 6.5.3 REAL TIME ANALYSIS WARNING: the Real time analysis functionality (RTA) is not a measuring instrument! It is an aid for setting up the audio system.
  • Page 43: Status Bar

    USER’S MANUAL HMD8 DSP/ 6.5.4 STATUS BAR The status bar is located at the bottom of the configuration software and provides some useful information for the user. In particular, some icons are shown on the right side of the status bar as in the following images: Warning: indicates the presence of potential configuration problems.
  • Page 44: Troubleshooting

    USER’S MANUAL HMD8 DSP/ 7. TROUBLESHOOTING SYNCHRONIZATION WITH A PC 1. HMD8 DSP operating problems If, when calibrating the system with HMD8 DSP connected to a laptop there are operating problems, try disconnecting the laptop power supply cable. With the laptop working on battery power you avoid a possible voltage difference in the USB ground between the vehicle (HMD8 DSP) and the ground (PC).
  • Page 45: Technical Specifications

    USER’S MANUAL HMD8 DSP/ 8. TECHNICAL SPECIFICATIONS POWER SUPPLY HMD8 DSP 12 V HMD8 DSP 24 V Power supply voltage / fuse: 11 ÷ 15 VDC / 2 x 30 A 22 ÷ 34 VDC / 2 x 15 A Operating power supply voltage: 6.5 V ÷...
  • Page 46 PART OF ELETTROMEDIA - 62018 Potenza Picena (MC) Italy - T +39 0733 870 870 - F +39 0733 870 880 - www.elettromedia.it...

Table of Contents