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4.28

High frequencies that captivate the ear—crafted by precision and passion.

【4.28 28mm Soft Dome Tweeter|Car Audio Speaker That Brings Out Delicate High Frequencies】

This is a 4.28 28mm soft dome tweeter designed for those who want to clearly hear even the subtle nuances in music—such as the singer’s breath and the lingering resonance of instruments.

The silk dome with Sonatex™ polymer lamination offers an excellent balance of light weight, rigidity, and self-damping characteristics. The design aims not to simply make the high frequencies louder, but to achieve a natural, delicate tonal character. If the sound from the factory tweeter feels a bit lacking, and you want the expression of vocals and cymbals to be a little more clearly defined, it’s a good option for improving sound clarity.

It also features a high-efficiency magnetic circuit using an N-52 grade neodymium magnet and a vented voice coil. You’ll notice not only stronger output when you turn the volume up, but also a clearer sound onset and easier-to-grasp fine details even at everyday listening levels. Setting the crossover with the integration to the front speakers and subwoofer in mind is important to achieve a cohesive sound where the tweeters don’t stand out alone.

For installation, you can choose between an aluminum mount and a resin mount, depending on the vehicle model and installation method. However, even with the same tweeter, the impression will vary depending on the installation location and angle, the mounting base, and how it combines with the existing system. At LOGON, we propose solutions by looking at the overall balance—without unnecessarily emphasizing the high frequencies—while confirming how it will sound inside the car and the customer’s musical preferences.

If you want to hear more detailed sounds than the stock setup, or you want a sound that won’t be too stimulating even after long listening sessions, please don’t decide based on a speaker swap alone—consult us once, including your current system and installation approach. If I were choosing, I would select it not only based on the tweeter’s standalone performance, but by considering how the entire front soundstage will come together in the car.

Key Specifications / Specs

【Basic Information】
Product name: 4.28 28mm soft dome tweeter
Type: Tweeter for car audio
Unit: 28mm silk dome (Sonatex™ lamination)

【Acoustic Performance】
Frequency response: 1.5kHz–22kHz
Sensitivity: 90.5dB
Impedance: 4Ω
Maximum input: 200W
Recommended crossover frequency: 2.4kHz or higher (12dB/oct)
Minimum resonance frequency: 990Hz

【Magnetic Circuit / Structure】
Magnet: N-52 grade neodymium
Voice coil: Vented voice coil
Pole plate: CNC-machined low-carbon alloy steel
Mount: Aluminum type, resin type

【Mounting Dimensions】
Baffle cutout diameter: 47mm (aluminum mount) / 48mm (resin mount)
Frame outer diameter: 70mm (aluminum mount) / 53mm (resin mount)
Recessed depth: 11.5mm (common)

【Connections / Weight】
Connection terminals: Plus 110 Faston / Minus 110 Faston
Weight: 120g (1 pc, with aluminum mount)

Shop owner Komizo

Woofer Opening Size

mm

Woofer Depth Size

mm

TW Dashboard Attachment

TW Upper Dashboard Exchange

TW Door Mirror Exchange

TW Pillar Exchange

TW No Processing Mount Attachment

List price¥ 33,000 (Tax included)