[KICKER OGPAA-40ALVE・2 Speaker Kit Dedicated to 40 Alphard / Vellfire Z・X Grade]

The 40 Alphard / Vellfire Z・X grade is a vehicle where, because the cabin comfort is already high, differences in sound can be surprisingly clear.
While it’s easy enough to use even in the factory configuration, if you want to hear vocals more clearly and add more openness and body to the sound, a vehicle-specific speaker kit like the KICKER OGPAA-40ALVE・2 is a great place to start.

This kit is designed so you can upgrade the dashboard and front-door speakers with a vehicle-specific fit.
Rather than aiming to drastically change the appearance, the key point is that it’s easy to proceed in a way that is less likely to break the original look and feel. It’s not a swap meant to make everything loud and flashy—it's a model that helps you tune the music you usually listen to so you can enjoy it more comfortably.

With your usual songs, the way vocals and instruments sound will start to change

After the replacement, the contours of vocals and the fine details and “air” in the sound that can be a bit buried with the factory setup tend to become clearer, and the overall balance can also be adjusted in a more positive direction.
It doesn’t just make high frequencies stand out—because the soundstage around the front tends to come together, even when you play BGM during commuting or drop-offs/pickups, it’s less likely to catch your ear. And when you want to listen to your favorite songs properly, the feeling of “something missing” is less likely to remain.

In a premium interior like the 40 Alphard / Vellfire, satisfaction often comes more from becoming naturally easier to listen to than from changing everything dramatically.
I think this kit is an excellent option for those who want to improve the sound in that kind of direction.

A dedicated kit that also considers compatibility with factory functions

Because it uses terminals with a connector compatible with the telematics service, the design is structured with consideration for maintaining harmony with the factory functions.
Being able to still use the factory functions as easily as before, such as Connect and operator services, is a reassuring advantage unique to a vehicle-specific product.

In addition, one of the benefits of a dedicated kit is that it is designed so it’s easier to return to the factory state.
You don’t want to change the usability or appearance of your car very much—but you want the sound to be a bit more properly tuned. This is a setup that should be easy for people like that to incorporate.

Even with the same kit, the impression changes depending on how it’s installed

With speaker replacement, the result isn’t determined by the product alone.
The final impression can surprisingly change based on how the interior panels are handled, the accuracy of the mounting, wiring treatment, and the care taken in assembly.

At Logon, we don’t just swap parts—we also proceed while checking the interior material feel of the 40 Alphard / Vellfire and the balance with the vehicle side.
If you want to make it into a finish that doesn’t ruin the look and can be used comfortably in everyday life, these details matter too.

This is a speaker kit that’s easy to choose for both those who want to slightly improve the sound while keeping the factory audio, and those who are thinking of taking their first step with future system upgrades in mind.
If you want to tune the sound of the 40 Alphard / Vellfire without overdoing it, we can guide you based on how you use the car and the music you listen to—so please feel free to consult us first.