The mystery of a thoroughly reborn listening experience: The Crown is equipped with Bivii audio, and the transformation of the door panel box is a key step

In the field of car audio modification, which combines acoustics, electronics and engineering art, the birth of an excellent system is far more than the simple stacking of equipment brands and the armchair strategist of parameters. Its core philosophy lies in: on the basis of scientific and reasonable collocation, the most exquisite, rigorous and creative modification execution means are the soul of transforming top-level hardware into a sound handed down from generation to generation. * * The higher the grade of the equipment, the stronger its potential and sensitivity, and the more experienced and highly mature modification team is needed to “tailor” it and accurately execute every detail related to the final hearing sense. Therefore, for every player who is committed to improving the auditory enjoyment in the car, an irrefutable truth is: * * Choosing a truly professional modification team is far more important than blindly selecting from the dazzling product catalog. * * Only by choosing the right team can we, under its professional guidance, choose the right products that really suit your model and listening concept, and build a harmonious and efficient system matching.

The owner of the Toyota Crown in this case is a senior audio enthusiast who knows this well. He always adheres to the rational principle of “team first, equipment later”. In order to pursue a more extreme level of sound quality and a more realistic experience on the spot, he made a bold decision: completely tear down the original three-way system on the car and completely rebuild it. Only one American DD 8-inch subwoofer unit, which is deeply loved and performs well, is retained, and the rest has undergone all-round “heart surgery” upgrades, fully embracing the Hi-End led by Japan’s Bewith two-way audio system.

Overview of Toyota Crown’s entire car audio system reconstruction and upgraded configurations

1. Sound source core: Alpine A 09 professional digital player (providing pure and lossless digital audio source)

2. Audio processing hub: Biwei DSP-8 P & P eight-channel audio processor (realizes precise reconstruction and signal optimization of the entire vehicle sound field)

3. Front sound field speaker system: Biwei A 50 III F tweeter + A 130 III mid-woofer unit (forming a flagship two-way combination)

4. Rear sound field speaker: Aiwei A 6 C coaxial speaker (providing auxiliary sound field and atmosphere filling)

5. Front sound field power drive: Aiwei’s flagship KING series four-channel power amplifier (independently drives the treble and mid-bass of the front sound field in an active crossover mode)

6. Rear sound field power drive: German zero point two-channel power amplifier (dedicated to driving the rear sound field speaker)

7. Ultra-low frequency system: American DD (Digital Designs) eight-inch subwoofer unit (retaining the original excellent unit)

8. Subwoofer power drive: Laifu P 500.1 D single-channel high-power amplifier (providing sufficient control for DD bass)

9. Power supply and management system: Biwei 70 A power regulator + Shiman F 380 super power filter + Stinger red top high-performance battery (trinity, ensuring system dynamics and absolute purity)

10. System neural network: A complete set of Brani high-end audio wires (to ensure lossless transmission of signals and currents)

11. Acoustic foundation engineering: All door panels and chassis are sound insulated by Japanese Flute God (creating a quiet box)

12. Core acoustic process: A-pillar tweeter exclusive box + door mid-bass customized box (creating an ideal working environment for the speaker unit)

Physical appreciation of some core upgraded equipment

High-quality Barney signal cable is the basic guarantee of sound purity.

Next, we will go deep into every key link of this in-depth reconstruction project, starting with the production of the door panel box that determines the sound base.

Completely disassemble the door trim panels to prepare for the implantation of the custom cabinet.

The frame of the box is finished, with fine surface treatment and corner polishing, and then it is ready to be wrapped in leather that is exactly the same as the original car to achieve perfect visual restoration.

List of the effects of the overall modification of the door box。 Every curved surface, every covering, and every seam reflect the respect and transcendence of the original car craftsmanship.

The exclusive box modification effect of the A-pillar tweeter unit is completed。 Its styling is acoustically simulated to ensure optimal directivity and blends perfectly with the A-pillar interior.

The control panel of the Alpine A 09 host is carefully installed in the central passage area where the driver is within reach and has a natural line of sight, taking into account the convenience of operation and the overall beauty of the interior.

Display of trunk equipment installation process details。 All power amplifiers, processors and power managers are orderly and firmly installed in the trunk, with clear layout, good heat dissipation and extremely regular wire management.

When all the top hardware is installed to the highest standard, the final chapter of the whole system engineering and the most magical link begins-* * professional audio debugging * *. This is a key step in turning a bunch of precision “semi-finished products” into “works of art” with a unified soul, and it is the ultimate fusion of technology and artistic perception.