【For BMW Sound Quality Improvement｜Bolt-On Speaker Dedicated Deadening Stage 2】

This is a deadening installation for those who want to further refine the cohesion of the sound and the way the bass comes out when replacing BMW’s factory speakers or installing bolt-on type speakers.

Not only will we fill the door service holes, but we will also suppress unnecessary vibrations across the entire door, so that as much of the force the speaker generates as possible is converted into sound. We’ll finish it thoroughly using our shop’s installation method. It can help reduce muffled sound and door rattling, and the definition of the bass and the ease of listening to vocals may change.

In addition, we apply BMW-specific tuning to the rear side of the speaker as well. While checking the door structure and the speaker position for each vehicle model, this includes verifying areas that cannot be fully corrected from the front side only.

Even with the same deadening, the final result varies not only with the materials used, but also with where and how the work is performed. If we perform it together with a speaker replacement, we will review the vehicle’s condition and your current sound complaints, and organize the necessary scope together.

The installation coverage is for the left and right front doors.
If you also want the rear doors treated, please confirm your vehicle specifications and preferences, and contact us for a separate consultation.

If you have a BMW and want “tighter bass,” “the door resonates when you turn up the volume,” or “you want to properly prepare the foundation as well, not just replace the speakers,” please consult us once. We will guide you with a reasonable approach tailored to your vehicle.