Views: 125 Author: Site Editor Publish Time: 2024-11-01 Origin: Site
The Qualcomm 8-core series car audio dvd player, specifically the models 3987 and 3986 head unit car stereo, have been meticulously developed by our company and are equipped with state-of-the-art processors that deliver exceptional performance. These two models head unit stereo share a host of similar functionalities and configurations, making them comparable in many aspects.
However, it is important to note that the model 3987 head unit with bluetooth is designed as an enhanced version of the 3986 head unit with android auto , introducing several improvements that significantly elevate the overall user experience. In particular, the 3987 head unit stereo offers superior sound and video output quality, which makes it an excellent choice for consumers seeking a more refined audio-visual experience. This advancement ensures that users can enjoy media content with greater clarity and fidelity, thus setting the 3987 head unit with gps apart from its predecessor while still retaining the core features that define the series.
|The Difference between AnTuTu Running Score
AnTuTu is a widely used performance evaluation software that evaluates the performance of a android play radio's processor (CPU), graphics processor (GPU), memory (RAM), and storage (ROM) through a series of tests.
AnTuTu's test content includes:
-CPU test: Evaluates the processor's ability to perform routine calculations and high-intensity processing tasks.
-GPU test: Evaluates the graphics processor's ability to render graphics and game performance.
-Memory test: Detects read and write speeds and data transfer efficiency.
-Storage test: Evaluates the device's read and write speed.
The higher the final score obtained by the test, the better the overall performance of the device. The AnTuTu score of the 3987 car radio is 178390, while that of the 3986 car radio is 171586. It can be seen that the AnTuTu score of the 3987 android navigation radio is significantly higher than that of the 3986, which means that the overall performance of the 3987 is better than that of the 3986 screen touch radio.
|The Difference between Power Amplifier Chips
Both TAS6424QDKQRQ1 and TDA7803 are power amplifier chips for car audio systems, but they come from different manufacturers and use different technologies. Here is a basic introduction to the two chips and the main differences between them:
(1) TAS6424QDKQRQ1
Manufacturer: Texas Instruments (TI)
Technology type: Class D power amplifier
Features⬇⬇⬇:
-High efficiency, which means less heat is generated during the amplification process.
-Often equipped with advanced protection and diagnostic features that help prevent overload and damage.
-Designed to provide high-quality audio performance while being more efficient in power consumption.
-Suitable for applications that require compact size and high power output.
-Four-channel output, which can be used to drive front and rear speakers.
(2) TDA7803
Manufacturer: STMicroelectronics
Technology type: Class AB power amplifier
Features⬇⬇⬇:
-Class AB amplifiers are traditionally considered to sound warmer and more natural than Class D amplifiers.
-Less efficient than Class D amplifiers, so they may generate more heat at high power output.
- Usually require a larger heat sink to handle the extra heat.
- Also usually offer four-channel outputs, but may be larger in size and weight at the same power output as a Class D amplifier.
- Sometimes integrate additional features, such as direct I2C control without external pins.
(3) Main differences
Efficiency: The TAS6424QDKQRQ1, a Class D amplifier used in the 3987 android radio display, is generally more efficient than the Class AB amplifier, such as the TDA7803 used in the 3986 touch screen audio.
Heat generation: Due to the difference in efficiency, the TAS6424QDKQRQ1 generates less heat than the TDA7803 during operation, which may affect the layout and thermal design of the amplifier.
Sound quality: Although the design of Class D amplifiers has improved significantly, some audio enthusiasts may still prefer the sound characteristics of Class AB amplifiers (such as the TDA7803).
Size and weight: Class D amplifiers can generally be made smaller because they do not require large heat sinks.
|Video presentation⬇⬇⬇
|Stable Quality Control
The head unit with carplay has complete functions and is better than the original carsystem.
New high-performance chip
Exclusive customized radiator
Complete QA QC testing process
PCBA detection/Key friction、life test/Vibration test/ High and low-temperature test
The product has passed CE, FCC TS6949 testing
|Installation issues of car navigation screen
Our company and factory are in China. We will transport head unit stereo to your designated place by express.After you receive the goods, you don’t need to worry about installation problems.
Complete and detailed installation video
Complete installation instructions
24-hour online installation guidance
