Not compromising an inch of space! Buick GL 8 achieves in-situ upgrade with Biwei speakers, defining the luxury hearing standard of MPV

Delivering professional things to a professional team for execution is not only the best strategy for efficient use of personal time, but also the fundamental guarantee to ensure that the final result meets or even exceeds expectations. The owner of Buick GL 8 knows this well. After purchasing this new GL 8, the owner clearly planned the upgrade steps: first, entrust a professional interior modification team to complete the customization and installation of the luxury interior of the whole car; After the interior project is completed perfectly and the overall style and comfort of the vehicle are established, the car will be delivered to us, focusing on another core upgrade related to sensory enjoyment-the reshaping of the car audio system.

 

Detailed requirements for customized upgrade of Buick GL 8 audio system:
The core demands of customers are very clear: first, all modifications must be strictly followed“Lossless, invisible”In principle, it must not encroach on or affect the original spacious and comfortable riding and storage space of this MPV, and all speaker units should be installed in situ as much as possible. Second, specific and professional requirements are put forward for the final sound quality effect: the sound must be richClear layering, the low frequency should be clean, full and powerful, without any procrastination and turbidity; More importantly, as the core area for business reception or family travel, the sound effect of the middle row must be infinitely close to that of the front row to ensure that every passenger can get an immersive listening experience. The main listening content of car owners is popular songs, classic old songs and folk music, which means that the system needs to combine the delicate emotions of human voices with the rich texture of instrumental accompaniment.

Analysis of in-depth customized system collocation scheme:

Sound source and processing part:The system sound source retains the large-screen host of the original car to ensure the integrity of all original car functions and the convenience of operation. Although its sound quality output performance can’t match that of top professional players, we equipped it with a Magic Cube eight-channel DSP audio processor. This processor will be responsible for taking over all audio signals and performing high-precision digital repair, frequency division and adjustment. With the blessing of professional tuning technology, it is fully capable of tapping the potential of the original car sound source to the extreme, and the final effect is enough to bring surprise to customers.

Loudspeaker system part:The front soundstage chose the entry-level two-way package of Japan’s Biwei B series. Customers have long been in love with the unique sound style of Biwei brand-the ultimate delicacy, rich musical details and mellow musical charm are the ideal choice for appreciating vocal and instrumental music. The rear sound field is equipped with Aiwei’s top four-inch full-range mid-tweeter unit, and its size perfectly matches the reserved space of the original car, truly realizing a lossless upgrade without any changes and direct replacement.

Ultra-low frequency system part:In order to meet the rigid space-saving needs of customers, we chose a German 0.8-inch subwoofer unit and tailored it“Replenishment box”。 We will make full use of the concave idle space on the right side of the third row of seats and perfectly embed the box into it, so as not to occupy a single effective trunk volume.

Power drive architecture:According to the characteristics and power requirements of each speaker unit, we built a fully active drive system. A Magic Cube six-channel power amplifier will drive the front sound field two-way (four channels) and the rear sound field full-frequency unit (two channels) in active crossover mode respectively. The subwoofer is driven independently by a German zero point two-channel power amplifier after bridging. So far, each speaker unit in the entire vehicle has an independent power amplifier channel for one-to-one precise control, providing the greatest flexibility and potential upper limit for later adjustment.

Wire and Foundation:All wires adopt our standard high-end scheme: the speaker cable uses the American Belden brand, and the signal cable, power cable and safety base are uniformly selected from Tengse products to ensure abundant and stable power supply and pure and lossless signal transmission.

Below, we will give you a complete presentation of the overall picture and core process details of this customized audio upgrade construction for Buick GL 8 through detailed graphic records.

At the beginning of construction, we first used professional software for three-dimensional design, and customized exclusive gaskets for horns through high-precision CNC engraving machines to ensure accurate and stable installation.

This is Aiwei’s top KING series four-inch full-range mid-tweeter upgraded for the middle-row seat area. After installation and restoration, the effect is completely invisible in the original car trim panel.

Installation of mid-woofer unit in the front door Biwei A 130 III. We have cleverly utilized and strengthened the original car horn gasket, retrofitting it to achieve the most robust and acoustically optimized installation possible.

 

Biwei tweeter, whose diaphragm diameter is only 18 mm, can express the delicacy and high-frequency extension of sound to the extreme, truly interpreting the sound philosophy of “concentration is the essence”.

The effect after the tweeter unit is installed in situ on both sides of the instrument panel is integrated with the original car interior style.

The installation position of the subwoofer complementary box is selected in the recess on the right side of the third row of seats, and the left side is the original car air conditioning system equipment. This location can be regarded as a model of “turning waste into treasure”.

 

Technicians are carefully crafting and polishing the subwoofer cabinet on the spot according to the three-dimensional model.

The effect of the initial completion of the main structure of the box can already be seen that it fits perfectly with the outline of the car body.

The surface of the box body is finely treated to ensure that the joints between it and the surrounding interior parts are smooth and the transition is natural, and then ash is filled and polished to prepare for subsequent coating.

This is the status of the original car before the modification of this location, for comparison and reference.

The effect of the final modification of the subwoofer box. The panel is treated with frosted black, which is in harmony with the dark interior atmosphere of GL 8 and has a high-end texture.

 

After the box is installed, its surface is completely on the same plane as the surrounding interior panels, without any bulge, thus truly realizing “zero occupation” of space.

 

The main power cord laid for the whole set of high-power sound system adopts No.6 wire gauge to ensure sufficient current transmission without bottleneck.

All wires are made of high-quality oxygen-free pure copper to ensure the strength and purity of sound from the source.

 

Magic Cube six-channel power amplifier and eight-channel DSP processor are integrated under the main driver’s seat, which is hidden and easy to dissipate heat.

The zero-point two-channel power amplifier that drives the subwoofer is installed under the passenger seat to achieve a balanced distribution of equipment weight on the left and right sides.

After two days of dedicated and meticulous construction, the customized audio upgrade project of this Buick GL 8 finally came to a successful conclusion. From precise non-destructive installation, to ingenious space utilization, to rigorous wiring technology, every link embodies the ingenuity of a professional team. Next, it will usher in the most important “soul injection”-professional audio debugging, and finally present car owners with a musical cockpit that not only meets demanding space requirements, but also exceeds expectations.