【KICKER KSC404 + KST2004｜A speaker set that refines the soundstage inside your car】

If the sound from your factory speakers feels muffled, the vocals seem to sit too low, or the high frequencies feel a bit lacking, then you should consider the combination of KICKER KSC404 and KST2004.

By using KSC404 to secure the thickness of the mid-bass/lower mids and the sense of sound “projecting,” and pairing it with a separate KST2004, it becomes easier to補う the amount of high-frequency information and the sense of sound spread. You’ll notice clearer vocal contours and that it’s easier to pick out the finer details—like guitar and cymbal—so even familiar songs start to feel different.

The image is of keeping the clear, punchy sound that’s typical of KICKER, while transforming the way the sound feels like it’s all gathered in one spot into a natural soundstage that expands forward. It’s also well-suited for people who want to enjoy music while driving and for those who want to hear the vocals clearly even without turning the volume up.

A combination whose finish changes with installation and adjustment

This setup isn’t just about swapping the speakers. Depending on the installation position and mounting method of the KSC404, the placement of the KST2004, and how you connect to the factory system, the cohesion of the sound and how the high frequencies are perceived will change.

Because the location and available space for the factory speakers vary by vehicle, it’s important to consider the installation method—including appearance, safety, and serviceability—while confirming on the actual car. As needed, check door-side treatments, mounting bases, and compatibility with the existing system.

At LOGON, rather than deciding on products and then forcing the installation, we listen to how you use your car, what music you usually play, and your dissatisfaction with the current sound—then we整理 together whether this combination truly fits.

If you want to change the sound by replacing speakers but aren’t sure how much work you’ll need to do, please consult us while confirming your vehicle model and current system. If it were me, I’d first identify which sounds you want to bring forward inside the cabin, and then think through everything including installation methods and adjustments.

Main specifications / specs

【Basic Information】
Product name: KICKER KSC404 + KST2004
Type: Speaker combination for car audio
Configuration: 10cm coaxial speaker + tweeter

【KSC404】
Speaker type: 10cm coaxial speaker
Main role: Reproducing the midrange and lower mids, providing sound thickness and a strong sense of projection

【KST2004】
Speaker type: Tweeter
Main role: Reproducing high frequencies, supporting sound spread and fine expression

【Installation / Fit】
Installation method / compatibility: Varies depending on vehicle model, factory speaker location, and existing system

• We will advise after confirming the actual car regarding the installation position and whether any processing is needed.