【4.165 16cm Midbass｜A Car Audio Speaker That Balances Power and Finesse】

You want the sound from the factory speakers to have a bit more thickness and punch. You want vocal and instrumental sounds to feel closer. If that’s what you’re looking for, the 4.165 16cm midbass is for you.

The paper cone made from long-fiber pulp with special processing is designed with an excellent balance of light weight, rigidity, and suitable internal damping. Its sound onset is straightforward, and it’s also easy to bring out a strong sense of density in the mid-to-low range, naturally revealing the foundation of vocals and the thickness of guitars, pianos, and drums.

It also uses a large-diameter voice coil made of copper-clad aluminum and a vented structure designed with heat dissipation in mind. Even when you want to turn up the volume and enjoy your music, the sound is less likely to bloat or become force-driven. This is a midbass that lets you enjoy music properly inside the car. With a Y35 ferrite magnet and a magnetic circuit developed using FEM analysis, it suppresses changes in magnetic flux before and after the amplitude movement—aiming to achieve both power and finesse.

Built for long-term use, featuring an aluminum die-cast frame, a precisely finished magnetic structure, and a special nitrile rubber edge, among other components. It’s also compatible with an optional dedicated grille & ring, making it easy to consider if you want to finish not only the sound, but also the appearance and protection.

That said, a speaker’s sound isn’t determined only by the unit’s standalone performance. The impression changes depending on the door-side rigidity and damping, the baffle construction, the mounting condition, and how it connects with other speakers. If I were choosing, I would confirm the vehicle model and factory system, the music you usually listen to, and the direction of sound you’re aiming for—then decide how and where to use the 4.165.

Whether you want to add thickness to the mid-to-low range with a factory replacement, or you want to make the midbass the center of your system by pairing it with an amplifier—this is a speaker worth consulting about. Let’s check together how your usual tracks will change, including installation and tuning tailored to your vehicle.

Key Specifications

【Basic Information】

• Product name: 4.165
• Type: 16cm midbass
• Unit size: 165mm
• Cone: Special processing / paper cone made from long-fiber pulp

【Performance】

• Frequency response: 50Hz–6.0kHz
• Sensitivity: 89.5dB
• Impedance: 4Ω
• Maximum input: 300W
• Minimum resonance frequency (Fs): 57.3Hz

【Magnetic Circuit & Structure】

• Magnet: Y35 ferrite
• Voice coil: Copper-clad aluminum
• Frame: Aluminum die-cast
• Edge: Nitrile rubber
• Vented structure: Yes

【Mounting Dimensions】

• Baffle cutout diameter: 143mm
• Frame outer diameter: 165mm
• Frame outer diameter (with grille installed): 170mm
• Mounting depth: 67mm
• Dedicated grille & ring: Sold separately

【Connection Terminals】

• Positive terminal: 250 Faston
• Negative terminal: 250 Faston

Shop owner: Komizo (小溝)