【Original Deadening Stage 2 (Inside & Outside)｜Installation Plan to Build the Sound Base with Door Deadening】

Original Deadening Stage 2 (Inside & Outside) is a form of sound deadening that treats not only the inside of the door, but also the outside—making it easier to bring out the full potential of your speakers.
It’s not just about making things quieter; it’s for those who want to suppress unwanted vibrations and resonances throughout the entire door, refining the clarity of the sound and tightening the bass.

With the door left as-is from the factory, it’s common for the steel panel to still “ring” and for vibrations to remain. Even after swapping speakers, you may feel that it doesn’t change as much as you expected.
The key point of this plan is that by addressing those foundational areas, you can more easily improve how vocals come through and how well the sound “comes together.” The difference in listening comfort isn’t only noticeable at higher volumes—it also tends to show up at lower volumes, making it easier to listen.

At Logon, we don’t just apply materials and call it done; we proceed by identifying the necessary areas based on the vehicle’s condition and your speaker setup.
Because the effectiveness also varies depending on the door construction and the condition of existing parts, being able to propose a solution while looking at the final results for each specific vehicle is what it means to have a specialist shop do the work.

This is especially well-suited for those who want to build the sound base starting with the front doors, and for those who want to achieve a step higher level of cohesion when combined with a speaker upgrade.
Deadening is a part that’s hard to judge by appearance, but it definitely shows in how it sounds in real listening. The more you want to properly refine your sound quality, the more important this kind of groundwork becomes.

If you’re interested, we can go over together—based on your current system and your car’s condition—how far the work should be done to be effective.
Since you’ll generally be more satisfied by building it up from the necessary parts rather than forcing everything in, please feel free to consult us first.