This is a reference price as no car model has been selected.

Removed the DSP amplifier and installed it under the seat.

Neatly tuck the DSP amplifier under the seat to balance great sound design and everyday ease inside the cabin.

【DSP Amp Remote Installation・Under-Seat Installation|LOGON Original Installation Designed with Sound Creation and Ease of Use in Mind】

You want to make proper use of your DSP amplifier, but you also want to keep as much luggage space as possible.
You’d rather avoid having too much of the wiring or the unit itself visible.
That’s exactly why DSP amp remote installation: under-seat installation is a great option for you.

A DSP amplifier for car audio is an essential “heart” that helps shape and refine the sound.
It’s not just about mounting it—considering where in the cabin to place it, how to route the wiring, and how easy it will be to inspect and adjust later will change the level of satisfaction with the final result.

Under-seat installation is appealing because it’s less likely to sacrifice a large amount of interior space, and it’s easier to keep the look natural and clean. You usually don’t even notice it day to day, yet it works reliably as the center of sound tuning and system configuration. These are the kinds of “invisible but effective” parts that LOGON also focuses on during installation.

However, it’s not possible to mount it in the same way on every vehicle.
We check the space under the seat, how the seat moves, the air-conditioning ducting, OEM wiring, safety equipment, and serviceability—then determine a position and mounting method that won’t cause problems. If this is decided loosely, it can affect day-to-day usability and maintenance later on.

At LOGON, we consider not only mounting the DSP amplifier itself, but also wiring treatment, securing, system configuration, and sound tuning—and plan everything in a way that fits your specific car.
It’s not a case of “just install it for now.” We also properly build the parts you can’t easily see, so you can enjoy it comfortably for a long time.

If you want to improve sound while making the most of your factory audio, if you plan to introduce a DSP amplifier along with speaker upgrades or adding a subwoofer, or if you want a neat and tidy interior, under-seat installation is a practical and easy-to-use choice.

The optimal installation method will vary depending on the space in your actual vehicle and the system you want, so please first consult us—include your vehicle model, your current audio setup, and the direction of sound you’d like to pursue in the future.
We’ll work together to create a specification that fits your precious car, without strain, and that sounds great.

List price¥ 0 (Tax included)

Removed the DSP amplifier and installed it under the seat. Latest construction examples