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HMD8 DSP/
USER’S MANUAL
1. PRODUCT DESCRIPTION / PRECAUTIONS
Thank you for purchasing the
HMD8 DSP
amplifier for your marine sound system. Your amplifier has been designed and
manufactured to exacting standards in order to ensure years of musical enjoyment in your vessel. 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. If you have any questions regarding the instructions in this manual or any aspect of your
amplifier’s operation, please contact your authorized Hertz dealer for assistance.
This section describes the main features of the amplifier and the connector panel. Some operating procedures for the correct
installation and the best use of the product are also illustrated.
HMD8 DSP
is a 9-channel amplifier with 8 amplified channels settable in bridge mode; it also features a 32 bit, 147 MHz clock
speed, 24 bit AD/DA converter digital sound processor (DSP), essential to maximize the acoustic performance of your audio
system. It features 6 Hi-Level / 6 Pre input channels on the master analog source and 1 S/PDIF optical digital.
It provides 8 amplified power outputs and 1 pre-amplified optimized to drive a subwoofer.
Before connecting the product, carefully read this manual.
Improper connections may cause damage to
HMD8 DSP
or to the speakers in your audio system.
It is important that you take the time to read this manual and that you plan out your installation carefully.
WARNING:
1.
A PC provided with Windows 7, Windows 8 or Windows 10 operating system, 1.5 GHz
minimum processor speed, 2 GB RAM minimum memory and a 1024 x 600 pixels minimum resolution
graphics card as well as at least 1 GB of available hard-disk space is required to install the software
and setup the product.
2.
Before connecting the product, carefully read this manual. Improper connections may cause damage to
HMD8 DSP or to the speakers in your vessel audio system.
Protect Your Hearing.
Studies have shown that continuous exposure to high sound pressure levels can lead to permanent (irreparable) hearing loss.
This and all other high-power amplifiers are capable of producing very high sound pressure levels when connected to a
speaker system. Please limit your continuous exposure to high volume levels.
While driving, operate your audio system in a manner that still allows you to hear necessary noises to operate your vessel safely
(horns, sirens, etc.).
This amplifier is designed for operation in vessels with 12V or else 24V and negative-ground electrical systems, according
to the information silk-screened on the amplifier power connection terminal.
Use of this product in vessels with positive ground and/or voltages other than 12V or 24V may result in damage to the
product and will void the warranty.
This product is not certified or approved for aircraft use.
The external case of this amplifier is designed to remove heat from the amplifier circuitry.
For optimum cooling performance, this external case should be exposed to as large a volume of air as possible.
Enclosing the amplifier in a small, poorly ventilated chamber can lead to excessive heat build-up and degraded performance.
If an installation calls for an enclosure around the amplifier, we recommend that this enclosure be ventilated with the aid of a fan.
In normal applications, fan-cooling is not necessary.
The amplifier needs to be installed in a dry, well-ventilated environment and in a manner which does not interfere with
your vessel’s factory installed electronic devices.
You should also take the time to securely mount the amplifier so that it does not come loose in the event of a collision /
sudden jolt or as a result of the repeated vibrations the vessel is prone to during normal operation.
Remark:
Check before drilling any holes in your vessel to make sure that you will not be drilling through the hull, a fuel tank, fuel
line, wiring harness or other vital vessel system.
Remark:
Do not run system wiring outside or underneath the vessel. This is an extremely dangerous practice which can result in
severe damage to your vessel and person.
Remark:
Protect all system wires from sharp edges (metal, fiberglass, etc.) by carefully routing them, tying them down and using
grommets and loom where appropriate.
Remark:
Do not mount the amplifier in the engine compartment or in any other area that will expose the amplifier circuitry to the
elements.
While this amplifier is specially designed for marine applications, it is not waterproof and it should not be mounted where
it is likely to get wet.
The following are some considerations that you must take into account when planning your installation.
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