Automotive / Car Audio
User Manual for Hertz Dieci Power Amplifier
Quick start guide for Hertz Dieci Power series amplifiers (DP 1.500, DP 2.200, DP 4.300, DP 4.400). Includes installation, wiring, safety, and connection instructions.
Quick answers from the manual
Quick answer
- The Hertz Dieci Power series amplifiers (DP 1.500, DP 2.200, DP 4.300, DP 4.400) are designed for 12V negative ground vehicle electrical systems. Installation requires careful planning of wiring routes, proper power supply connection, and ensuring adequate ventilation. p. 1, 3, 5
Key actions
- Connect the power supply cable to the battery with a fuse holder within 20 cm. p. 5
- Ensure the amplifier is installed in a location with good air circulation, at least 5 cm from walls. p. 3
First start
- Turn off the source and all other electronic devices in the audio system before installation. p. 3
Problems and fixes
Amplifier goes into protection
Check for covered heat sink or poor ventilation.
p. 3Where to find it in the PDF
- Packaging Contents p. 2
- Safety Precautions p. 3
- Installation and Sizes p. 4
- Power Supply Connection p. 5
- Input/Output Connections p. 7, 8, 9, 10
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This guide provides essential information for the installation and connection of Hertz Dieci Power series amplifiers. Before starting, ensure your vehicle has a 12 VDC negative ground electrical system and that your alternator and battery can handle the increased power consumption.
Packaging contents
Each package includes the amplifier unit, mounting screws, and necessary tools (Allen keys). Please verify the contents against the specific model (DP 1.500, DP 2.200, DP 4.300, or DP 4.400) as shown in the packaging contents section.
Installation and sizes
The manual provides detailed dimensions for each model to assist with planning the installation location. Ensure the amplifier is installed in a location with good air circulation, at least 5 cm (2 inches) away from any walls. Do not install the amplifier in the engine compartment or areas exposed to water, humidity, dust, or dirt.
Power supply and remote connection
Proper power supply connection is critical. Use a fuse holder within 20 cm (7.9 inches) of the battery. Ensure the power cable is not short-circuited during installation. The remote (REM) terminal should be connected to the head unit's remote output to turn the amplifier on and off.
Input and output connections
The manual details specific input and output configurations for each model:
- Inputs: Use either PRE-IN or HI-IN inputs, but not both simultaneously.
- Outputs: Connect speakers to the speaker output terminals, ensuring correct polarity (+ and -).
- Subwoofer Remote Control: For the DP 1.500 model, an optional HRC-02 remote volume control can be installed.
Safety precautions
- Always wear protective eyewear when using tools.
- Turn off the audio source and all electronic devices before installation.
- Ensure all cables are properly secured and protected.
- Do not use aggressive solvents to clean the amplifier; use a damp cloth.
- Be aware that the amplifier can reach temperatures of around 80°C (176°F) during operation.
Manufacturer information
Hertz
Practical help
Common problems
Amplifier goes into protection mode
Ensure the heat sink is not covered and there is adequate air circulation around the unit.
Overheating
Verify the installation location is not in the engine compartment and allows for proper ventilation.
Short circuit during installation
Ensure the power cable is not short-circuited during installation and connection with the battery.
Before use
- Ensure vehicle has 12 VDC negative ground system.
- Check alternator and battery condition.
- Plan wiring routes before installation.
- Wear protective eyewear when using tools.
- Turn off audio source and electronic devices before starting.
Specs in practice
- 5 cm (2 inches)
- Minimum clearance required around the amplifier for proper cooling.
Images and diagrams
- Wiring diagrams illustrate the correct connection of power, ground, remote, and speaker cables.
- Fuse replacement procedure is clearly shown.
Model compatibility
- Compatible with 12V negative ground systems.
- HRC-02 remote volume control is optional for DP 1.500.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.