Notice of Temporary Closure

Thank you for always choosing Sound Evolution Logon.

We will be temporarily closed during the following periods:

• July 13, 2026 (Mon) to July 17, 2026 (Fri)
  We will respond sequentially starting from Saturday, July 18.

• August 11, 2026 (Tue) to August 19, 2026 (Wed)
  We will respond sequentially starting from Thursday, August 20.

• September 21, 2026 (Mon) to September 25, 2026 (Fri)
  We will respond sequentially starting from Saturday, September 26.

Regarding inquiries received during the closure period, we will review and respond to them sequentially from the end of each closure period.

We apologize for any inconvenience this may cause customers who were planning to visit or consult with us. We will handle each vehicle carefully, so we appreciate your understanding.

The look is OEM. The sound goes to another dimension.

While preserving the OEM feel, upgrade your car audio to the next level.

Recently, we’ve been getting more inquiries from customers who want to improve only the sound—while keeping the usability of the factory navigation or display and making full use of the interior design as-is.

Not an audio system that’s heavily modified to stand out, but an
audio installation that finishes naturally and with quality, while keeping the OEM appearance as intact as possible.

At LOGON, we move forward with proposals to enhance sound quality in a “factory-like” style—confirming not only the OEM parts from higher grades, but also the structure specific to each vehicle model.

The look stays OEM.
But once you play music, you can clearly feel the difference.

With that kind of finish in mind, we’ll build the sound in an achievable way—taking into account your vehicle’s OEM system, speaker placement, interior structure, and even how you plan to use it going forward.

“For this car, since it has an OEM system, I can’t touch the sound.”
“I don’t want to do major modifications.”
“Considering resale, I’d prefer a setup that’s easy to return to stock.”

This is the style we want you to know—especially if you’ve given up on upgrading your audio for reasons like these.

At LOGON, we’ll check your vehicle’s condition and the factory system one by one, and work with you to find methods that can raise your current sound by one step, then another.

Modern cars have wiring structures and vehicle control systems that are becoming more complex year by year.
There are also more cases where you can’t judge based on simple installation alone—such as errors when removing OEM parts, impacts to the vehicle, and serviceability.

That’s why our shop aims to install while carefully considering potential effects on the vehicle, including checks before and after installation and verification using diagnostic equipment.

We also try to avoid leaving any concerns for the future—like resale, vehicle replacement, and even during inspections (shaken). Where possible, we avoid large modifications, and we place importance on how easily the system can be returned to OEM.

Keep the OEM feel, and evolve the sound properly.
As a way to enjoy car audio in the future, LOGON will continue to nurture this style.

We’ll also roll out proposals by vehicle model in stages, so if you want to enjoy music even more comfortably while preserving the OEM atmosphere, please feel free to consult us once.