DB Drive G7 250.4 User Manual

DB Drive G7 250.4 User Manual

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• Installation Instructions / Owner's Manual •
TM
Due to continous improvement of the product the specifications are subject to change without notice.
AMPLIFIERS
G7 1250.1
G7 2500.1
G7 3500.1
G7 5000.1
User Manual
G7 150.4
G7 250.4
G7 500.4

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Summarization of Contents

Introduction
Product Commitment
DB's commitment to product development and performance for musical enjoyment.
Keep Your Sales Receipt
Importance of keeping the sales receipt for warranty service.
Recommendation
Advice on proper installation by authorized dealers or careful DIY.
Optimal Product Choice
Recommends using authentic DB Drive electronics and wiring for system performance.
G7 Amplifier Specifications
G7 Digital Monoblock Amplifiers
Detailed specifications for G7 digital monoblock amplifiers, including load, frequency response, and filters.
G7 4-Channel Class AB Amplifiers
Detailed specifications for G7 4-channel class AB amplifiers, covering load, frequency response, and filters.
G7 Amplifier Controls and Connections
G7 Digital Monoblock Amplifier Controls
Explains controls and connections for G7 digital monoblock amplifiers, including RCA, Drive Link, and protection circuits.
Remote Level Control Port
Describes the port for connecting the remote gain level control.
+12V Power Connection
Details the power connection requirements to the battery's positive terminal.
Ground Connection
Explains the ground connection to the vehicle's negative or ground cables.
Gain Adjustment
How to match headunit voltage to amplifier input for optimal gain.
Adaptive Crossover Technology
Controls the low pass point for speaker outputs.
Subsonic Filter
Controls high pass point for subwoofers to eliminate extreme low frequencies.
Bass Boost
Boosts bass frequencies by 0 to 12dB at 45Hz.
Phase Control
Adjusts the phase from 0 to 180 degrees.
External Fuses
Information on external fusing for amplifier protection.
G7 4-Channel Amplifier Controls
RCA Connectors and Mode Selection
Explains RCA input/output and selectable input settings for channels.
Power Input and Remote Control
Details power connection to battery and remote gain control port.
Protection Indicators and Signal Status
Explains Power/Protect LEDs and signal evaluation status indicator.
Ground Connection
Explains the ground connection to the vehicle's frame.
Gain Adjustment
Matches headunit RCA output voltage to amplifier input.
Crossover Selector
Selectable HP-LP crossover for bandpass function.
High Pass and Low Pass Filters
Controls the high and low pass points for speaker outputs.
External Fuses
Information on external fusing for amplifier protection.
Adaptive Crossover Technology Settings
High-Frequency Speaker Settings
Describes setting the crossover for tweeters using HPF.
Subwoofer Settings
Explains setting the crossover for subwoofers using LPF.
Midrange Speaker Settings
Details setting crossover for midrange speakers using Band Pass function.
Installation Procedures
Mounting Preparation
Steps for preparing the mounting location, including battery disconnection.
Heat Management and Location
Guidance on collective heat management and finding a suitable mounting location.
+12V, GND, REM Connection
Instructions for connecting power, ground, and remote turn-on cables.
Recommended Fuse Values
Table of recommended fuse values for different G7 amplifier models.
Connection Diagrams
+12V, Ground, Remote Connection Diagram
Diagram showing power, ground, and remote connections.
Speaker Connection Guidelines
Guidelines for connecting speaker wires to amplifiers.
Monoblock Amplifier Speaker Connection Diagrams
Diagram 1 (8~1 ohms)
Diagram for connecting G7 monoblock amplifiers to speakers at 8-1 ohms.
Diagram 2 (8~2 ohms)
Diagram for connecting G7 monoblock amplifiers to speakers at 8-2 ohms.
4-Channel Amplifier Speaker Connection Diagrams
Diagram 1 (8~2 ohms)
Diagram for connecting G7 4-channel amplifiers to speakers at 8-2 ohms.
Diagram 2 (8~4 ohms)
Diagram for connecting G7 4-channel amplifiers to speakers at 8-4 ohms.
Multi-Linking Connection
Drive-Link Connection Steps
Step-by-step guide for linking two like amplifiers using Drive-Link.
Troubleshooting
No Sound / No Output
Checks for connection issues, blown fuses, or speaker malfunctions.
Protection Mode
Troubleshooting overload, overheat, short, voltage, and impedance issues.
Poor Bass Response
Guidance on checking speaker polarities for bass response issues.
Whining Noise
Addresses engine noise caused by poor grounding connections.

Table of Contents