Hertz ML Power 4 User Manual
ML Power
ADVANCED
WEB
MANUAL
ML Power 4
rev 1.0
Il Manuale Utente è disponibile
anche sul nostro sito
www.hertzaudiovideo.com
The User Manual is also
available from our web site
www.hertzaudiovideo.com
www.hertzaudiovideo.com
ML Power 4
Advanced Web Manual
EN
Index
1. INTRODUCTION 3
2. PACKAGE CONTENTS 3
3. SAFE SOUND 4
4. GENERAL PRECAUTIONS 5
5. INSTALLATION AND SIZE 6
6. BATTERY / REMOTE CONNECTION AND HOW TO REPLACE THE FUSE 7
7. AUTO TURN-ON WITH HI-LEVEL INPUTS 7
8. TOP PANEL CONTROLS: SWITCHES AND ADJUSTMENT 8
9. FRONT AND REAR PANELS 9
10. CONFIGURATION DIAGRAMS
PRE-IN A FOR WOOFER AND MID/HI 10
PRE-IN A/B FOR FRONT AND REAR 11
PRE-IN A AND HI-IN B FOR FRONT AND REAR 12
HI-IN A AND PRE-OUT 13
HI-IN A AND B AND PRE-OUT 14
HI-IN A AND B FOR FRONT AND REAR 15
PRE-IN A FOR FRONT AND SUBWOOFER MONO (BRIDGE) 16
PRE-IN A AND B FOR FRONT DUAL MONO 17
HI-IN A AND PRE-OUT FOR WOOFER AND MID/HI 18
11. CABLES 19
12. BLOCK DIAGRAM 20
13. TECHNICAL SPECIFICATIONS 21
2
ML Power 4
1 INTRODUCTION
Thank you for purchasing a Hertz product, designed according to the highest quality standards.
Your ML Power amplifier is a cutting-edge product of compact size, providing high power and quality of
sound.
It will definitely ensure you maximum satisfaction by taking up very small room in your vehicle.
Before the installation, in addition to reading the Quick Start Guide (QSG), the consultation of this user’s
manual available on the Hertz website will let you achieve the highest performance from your amplifier.
Advanced Web Manual
EN
2. PACKAGE CONTENTS
In the package, besides your amplifier, you will find:
• Quick Start Guide ...................................................................................................................................
• Warranty Card ........................................................................................................................................
• 40 A blade fuse ......................................................................................................................................... x2
• 4,2 x 16 mm self-tapping, cross-headed fixing screws ....................................................................... x4
40
3
ML Power 4
3. SAFE SOUND
HERTZ AMPLIFIERS CAN BE PART OF A HIGH POWER AUDIO SYSTEM THAT CAN GENERATE VERY HIGH
UNDISTORTED SOUND PRESSURE LEVELS. PLEASE REMEMBER THAT LONG EXPOSURE TO AN EXCESSIVELY
HIGH SOUND PRESSURE LEVEL MAY DAMAGE YOUR HEARING; THEREFORE, PLEASE USE COMMON SENSE
AND PRACTICE SAFE SOUND.
Safety must be at the forefront while driving. The listening volume should never obscure the noise coming
from the outside of your vehicle; you should be able to hear the sounds generated by your vehicle in order
to promptly face any emergency situation.
To achieve the best possible performance from your new components, we recommend you follow the
instructions in this manual carefully. In order to design and create top level car hi-fi systems you need
to understand automobile mechanical and electrical issues very well; if you think you lack the required
knowledge or the proper tools, please consult with a specialized installer.
A professional installation will ensure your system delivers all the performance you have paid for, without
affecting the safety and reliability of your vehicle.
Advanced Web Manual
EN
This manual has been designed to provide you with the basic instructions required to install and use this
product. However, the range of possible applications is very wide; to obtain further information, please
contact your authorized Hertz dealer or Hertz service center.
You can also send an e-mail directly to the following addresses:
Italy - supporto.tecnico@elettromedia.it
Worldwide - support@elettromedia.it
4
ML Power 4
Advanced Web Manual
EN
4. GENERAL PRECAUTIONS
• This symbol indicates that you have to pay attention to these instructions. Disregarding them
might cause accidental harms or damage your amplifier.
• Before installing the amplifier, make sure you carefully read and understand all instructions.
• The vehicle electric system must have 12V DC voltage with negative to ground. Make sure your
car has it in order to avoid any damages to your amplifier and to the vehicle.
• Pre-plan the configuration of your new amplifier and the best wiring routes to ease installation.
• Always wear protective eyewear when using tools that may generate splinters.
• During installation, keep the amplifier in its packing as long as possible; this will protect it from damages.
• Secure all auxiliary devices you built to install the components to the vehicle structure through
brackets, screws, nuts and bolts; this insures stability and safety while driving.
• The amplifier detachment while driving can damage the people in the vehicle and other cars. Secure the
amplifier at best, paying utmost attention if installation is inside the passenger’s compartment. Do not carry out
any installation inside the engine compartment.
• Before installing the amplifier, turn off the source and all other electronic devices in the audio system for preventing any damages.
• Make sure the location you chose for the components does not affect the correct functioning of the vehicle mechanic and
electric devices.
• Do not run the cables or install the amplifier next to electronic gearcases.
• Use extreme caution when cutting or drilling the car plate, checking there are no electrical wiring or structural element underneath.
• Before connecting the power cable to the amplifier, disconnect the negative lead ( - ) from the car battery.
• Make sure power cable is not short circuited during installation and connection.
• Power cable must have mechanically resistant and self-extinguishing insulation. Its section have a size corresponding with
what is suggested in this manual. Avoid to run it over or through sharp edges or close to moving mechanical devices. Make
sure it is well fixed all along its length. Block positive and negative cables just close to the amplifier respective power supply
terminal blocks through a clamping screw.
• Use rubber grommets to protect the wire if it runs in a hole of the plate or proper materials if it is close to heat-generating parts.
• To ground the device ( - ) in the right way, use a screw in the vehicle chassis; scrape all paint or grease from the metal if
necessary, checking with a tester that there is continuity between the battery negative terminal ( - ) and the fixing point. If
possible, connect all components to the same ground point; this solution rejects most noise.
• Route all signal cables away from power cables.
• Never run cables outside the vehicle; you would not be protected against wear and in case of accidents.
• When installing speakers and the cables that connect them, make sure that non-insulated parts never touch, even occasionally,
the vehicle cutting parts. If they do, the amplifier protection is activated.
• To prevent all problems, use very good quality cables, connectors and accessories, choosing them in Connection catalogue.
• When installation is over, and before plugging the main power supply fuse, check the system wiring and make sure all
connections were done in the right way.
• Power amplifiers put an increased load on the battery and on its charging system. We recommend checking your alternator
and battery condition to ensure they can handle the increased consumption. Standard electrical systems which are in good
condition should be able to stand this extra load without problems but we recommend the use of an energy storage
capacitor and/or a battery for high level audio systems.
• Put a fuse and its insulated fuse holder 40 cm max. far from the battery positive terminal; connect one end of the power cable
to it after connecting the other end to the amplifier. The fuse value must be 50% higher than the amplifier built-in one. In case
the cable supplies several amplifiers, the fuse value will have to be 50% higher than the sum of the values of all other fuses in
the amplifiers.
• There must be good air circulation where the amplifier is installed; this area must not be affected by humidity, rain, external
deposits or parts coming from the vehicle mechanical devices. Do not hinder in any way the cooling of the amplifier side fins
• Install the amplifier in the vehicle parts where temperature is between 0°C (32°F) and 55°C (131°F).
WARNING: When working in demanding conditions, the amplifier can reach temperatures of around 80 - 90°C (176÷194°F).
Make sure it is not dangerously hot before touching it.
• Periodically clean the amplifier without using aggressive solvents that might damage it. Dampen a piece of cloth with water
and soap, wring it and clean the amplifier. Then use a piece of cloth dampened with water only; eventually clean the amplifier
with a dry piece of cloth.
• Remove dust and solid deposits from the heat sink side fins. Don’t use compressed air on the amplifier since it would push
solid parts in the amplifiers. If necessary, please contact a specialised service centre for internal cleaning. Cooling system
obstruction makes the amplifier go in safety mode.
5
ML Power 4
5. INSTALLATION AND SIZES
B A
Advanced Web Manual
A B C D E
ML Power 4
289 272 170 148 46,7 mm
11.38 10.71 6.69 5.83 1.84 in.
EN
D
C
E
6
ML Power 4
+BATTERY wire
+BATTERY
GND
REMOTE OUT
2 x 40 A
BLADE FUSES
Apply a Fuse
close to positive
pole to protect
+BATTERY wire
SD
6. BATTERY / REMOTE CONNECTION AND HOW TO REPLACE THE FUSE
2 x 40 A
BLADE FUSES
GND
Advanced Web Manual
EN
+BATTERY
7. AUTO TURN-ON WITH HI-LEVEL INPUTS
ORIGINAL SOURCE
Apply a Fuse
close to positive
pole to protect
SD
REMOTE OUT
“HI AUTO TURN-ON”
Set the
switch to the
“ON” position
ORIGINAL SOURCE
Set the “HI AUTO TURN-ON”
switch to the “ON” position
7
Loading...