The strength, angle, and fixing method inside the D-pillar have been optimized to dramatically improve the sound spread and surround feeling from the rear, resulting in a completely custom-made, high-end audio system.

This is a fully custom-made process to install speakers beautifully and at the optimal angle on the D-pillar.
The enclosure shape is designed from scratch, with the internal structure, mounting rigidity, and sound radiation balance meticulously tuned.
It achieves a natural finish that does not detract from the vehicle's design while also delivering high acoustic performance.

This process significantly increases the amount of information coming from the rear,
smoothing the connection between front and rear sounds, creating a three-dimensional sound stage that envelops the entire vehicle interior.
It also significantly contributes to improving listening quality in the rear seats.

Emphasis is placed on a sense of unity with the interior, with the shape, materials, and surface finish all custom-made.
It features a luxurious finish that blends naturally into the existing interior.

■ Product Features
Completely one-off D-pillar embedding processing

Specially designed to optimize speaker angle and direction

Significantly strengthens the sound field at the rear of the vehicle, improving the feeling of being surrounded

A natural sound field that creates a sense of unity with the front speakers

Completely custom-made shape, material, and finish to match your vehicle

Achieves high sound quality while maintaining a genuine appearance

Also effective in improving rear seat listening quality

Compatible with all speaker sizes (※Scope of processing is subject to consultation)