【Prima APX 4 | 10cm coaxial speakers that naturally enhance the sound in your car】

If the sound from your factory speakers feels a bit muffled and you’d like to enjoy vocals and instruments a little more clearly, the one to consider is the APX 4 from the Prima series.

These are 10cm coaxial 2-way speakers, designed to fit easily even in limited space. With a design that radiates sound from the same point, they aim for a cohesive, natural sound when listened to inside the vehicle.

When you listen to your usual music in the car, vocal placement and the outlines of instruments become easier to discern. They’re speakers that are also easier to tune in a direction that helps reduce listening fatigue even on long drives. Rather than delivering dramatic impact at high volume, they’re suited to those who want to change the sound impression from their factory speakers without forcing it.

Another feature of the APX 4 is that installation is straightforward. However, the final result isn’t determined by simply replacing the speakers. How the sound comes out varies depending on each vehicle’s mounting space, compatibility with the factory system, the mounting method, and the surrounding conditions.

Even with the same speakers, the impression changes depending on how they’re installed. If it were me, I would first check the vehicle and the factory system, then consider whether the APX 4 alone is sufficient, including the installation method and any surrounding processing. Let’s go through a sensible, no-nonsense combination together based on the vehicle model and how you use it.

*No grille is included.

Main Specifications

【Basic Information】
Product Name: APX 4
Series: Prima
Type: Coaxial 2-way speaker
Configuration: SET COAX 2Way
Size: 100mm

【Performance】
Reproduction Frequency Range: 80Hz–23kHz
Rated Input: 40W
Input Impedance: 4Ω
Sensitivity (Sound Pressure Level): 91dB/SPL

【Mounting Dimensions】
Cutout Diameter: 93mm
Mounting Depth: 43mm

【Included Items】
Grille: Not included