BLAUPUNKT GTD 1407 A Class AB DSP with Amplifier User Manual
- June 16, 2024
- Blaupunkt
Table of Contents
CLASS AB DSP
WITH AMPLIFIER GTD 1407 A
Operating and Installation Instructions
CAUTIONS
This device has been manufactured according to established safety guidelines.
However, dangers may still occur if the safety notes in this manual is not
observed. This manual is intended to familiarize the user with the device’s
important functions. Read this carefully, prior to using the car radio. Keep
this manual in an easily accessible location. In addition, do observe the
instructions of other devices used in conjunction with this device.
Installation Safety Notes
Always adhere to the following safety guidelines:
- Use the device in a manner that enhances the user’s safety while operating the vehicle. It is advisable for the user to install the device at an appropriate location during operation. While driving, it is not recommended for the user to use applications that may lead to distraction.
- Before installation, disconnect the negative terminal of the battery. Refer to the safety vechicle manufacturer’s user manual.
- Ensure that the positions of the holes are nowhere near the vehicle components to avoid any damage during drilling.
- Ensure cross section of the cables is not more than 5mm if the positive and the negative cables are too long. Incorrect installation may result in malfunction of the device or the car sound system.
- Select a dry and well-ventilated location to install the device.
- The device must not be installed in overly exposed location.
- The installation location must be suitable for screw holes and stable ground support
General Safety Notes:
Follow the guidelines below to protect against injuries:
- Users are advised to maintain the volume of the car radio at a moderate level to safeguard their ears and enhance their ability to hear emergency warning signals (e.g., police and ambulance sirens). Avoid increasing the car radio volume hile it is muted, as it may not be audible. The car radio volume can become excessively loud when unmuted.
Disclaimer
- Blaupunkt is not liable for any loss or damage caused or resulting from unauthorized disassembly or modification to the product.
- Under no circumstances shall Blaupunkt be held liable for any direct, indirect, punitive, incidental, or special consequential damages, whether related to property or life, arising out of or connected with the use or misuse of our products, including but not limited to issues of improper storage.
- USA & CANADA: This product is not intended for sale in the United States and Canada. If acquired in the U.S. or Canada, it is obtained on an “as-is” basis. No warranty, whether express or implied, is provided in the U.S. and Canada.
Voltage Supply
- +12V : Positive connection terminal for car 12V power supply.
- GND : Power supply negative connection terminal.
- Firmly and carefully connect the ground lead to a bare metal point on the vehicle chassis.
- Operation temperature : 0° – 70°C
Compatible OS
- PC – Windows XP or higher
- Mobile Phone – Android 5.0 or higher – iOS 12.0 or higher
Contents in Box
- Digital Signal Processor (186 x 120 x 46mm)
- 4x Tapping Screws (4x20mm)
- 1x 2.0m USB Cable
- 1x Universal 20P Wiring Harness
- 1x Wired Remote Control (Optional)
Disposal Notes
Do not dispose of your old unit in the household trash!
Use the return and collection systems available to dispose of the old device.
This manual may be updated from time to time without any notice. Visit
www.blaupunkt.com for more info.
INPUT FUNCTION
| 1. Ch1~Ch7/8 Low Level Outputs | 6. Power & Protection LED |
|---|---|
| 2. Ch1~Ch4 Low Level Inputs | 7. HI/ ACC Convertor |
| 3. USB 2.0 Port | 8. Hi Level Inputs/ Speaker Outputs/ Remote In/ Remote Out |
| 4. Remote Control Input | |
| 5. USB Player |
INSTALLATION
SPECIFICATION
Audio
- DSP RMS Power : 25W x 4(4Ω), 40W x 4(2Ω)
- DSP Resolution : 24 Bit
- DSP Output Power RMS @ 4 Ohms (≤1% THD +N) : 25Wx4
- DSP Output Power RMS @ 2 Ohms (≤1% THD +N) : 40Wx4
- Distortion (THD) : ≤0.05%
- Damping Factor : >70
- Operating Voltage : 9 -16V
- Sampling Rate : 48kHz
- Signal Converter A/D : MPV8428P
- Signal Converter D/A : Cirrus Logic CS4344
Input
- 4 x RCA/ Aux-in
- 4 x High Level Speaker Input
- 1 x Remote-in
- 1 x USB
- RCA/ Cinch Sensitivity : 300mV
- High Level Input Sensitivity : 2.5V
- Impedance High Level : 51 Ohms
- S/N Ratio Analog-in : ≥95dB
Output
- 7 x RCA/ Cinch
- 4 x High Level Speaker Output
- 1 x Remote-out
- Voltage RCA/ Cinch : 4V RMS
Feature
- Class AB Amplifier
- Max. Output Power : 240W
- Frequency Response : 20Hz-22kHz
- Max. Current Draw : 30A
- Dimension (W x H x D) : 186 x 120 x 46mm
- Weight : 0.92 kg
WIRING DIAGRAM
Universal Wiring Method
SOFTWARE OPERATION (WINDOWS)
Blaupunkt GTD 1407 A Software
Visit www.blaupunkt.com to download the software.
Car entertainment enthusiast / experts may now begin to tone signal details.
Enhance the sound efiect according to your very own preference for optimum
music enjoyment with the DSP software.
-
Source Load
-
7-channel Control
-
31-band Tuning Waveform
-
Crossover Frequency Setting :
• 3 Types of High-pass Frequency
• 3 Types of Low-pass Frequency -
31-band Equalizer Control
-
Main Volume Control
SOFTWARE OPERATION (MOBILE APPLICATION)
Mobile Application
- Download “Blaupunkt GTD 1407 A” App from Play Store (Android) or App Store (iOS).
Adjustment of
Main Volume
- Adjust the main volume by clicking on the scale clockwise (Increase) or counter clockwise (decrease).
SOFTWARE OPERATION (MOBILE
APPLICATION)
TROUBLESHOOTING
If any of the following problem occur, please resort to Troubleshooting for the possible solutions. Consult Blaupunkt authorized dealer if problem persist.
| Problem | Solution |
|---|---|
| Amplifier power up failure | Examine if the ground connection is intact. |
Examine if remote input has at least 5V DC.
Examine if battery power is connected correctly to the + terminal.
Ensure supplied voltage is minimum 12V.
Inspect the fuse for damage and replace it if needed.
Restart the device if protection LED light is on.
No sound output| Examine fuses and replace if necessary.
Examine if ground connection is intact.
Examine if remote input has at least 5V DC.
Examine if RCA audio cables are connected to the right inputs.
Examine if speaker wiring is intact.
Low sound output| Reset Level Control
Examine the Crossover Control setting.
Buzzing noise| Check if the device continues to produce noise after toggling
the amplifier on and off. If yes, examine if the cables are correctly
connected and if the cables and radio are in good condition.
Repair or replace if the cables or the radio are not in good condition.
Squealing noise interference| Ensure RCA connections are properly connected.
Distorted sound output| Ensure input level of the device matches the signal
level of the head unit.
Always set the input level to the lowest.
Examine if crossover frequency is set correctly.
Examine if speaker wire had short-circuit.
Amplifier temperature increased| Examine if the minimum speaker impedance for
the amp models is correct.
Ensure good air ventilation around the device. Add external cooling fan if
necessary.
Engine noise (static sound) interference| Typically, poor RCA cable quality is
the cause of noise release.
Engine noise (alternator whine) interference| Examine if RCA cable are nowhere
near or attached to the vehicle chassis. Examine if head unit is properly
connected to the wires.
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Blaupunkt Car Entertainment – Asia Pacific Competence Centre