【ESB9000 NOVEMIRA SERIES Separate 2-Way｜Genuine Japan-Made Silk Dome Tweeter】

The treble sounds sharp, the vocals feel a little too far away, and even after replacing the factory speakers, you don’t get the change you expected.

If that sounds like you, you may want to consider the ESB9000 NOVEMIRA SERIES Separate 2-Way.

This tweeter uses a 28mm genuine Japan-made silk dome diaphragm. While preserving the attack of the sound, it is designed to deliver the natural sheen and smoothness characteristic of a silk dome. It renders the mid-to-high frequencies in detail—vocals, guitar, piano, and more—yet is tuned so you can listen for long periods without getting fatigued.

The TCA / FCA system helps regulate back pressure and airflow to suppress distortion and noise. It aims to reproduce high-speed sound with fast response to the input signal. The lightweight voice coil and the high-efficiency magnetic circuit using an N52H neodymium magnet are also key factors in this tweeter’s responsiveness.

The faceplate with an acoustic lens function is designed to reduce the characteristic “wraparound” of sound from the sides found in car audio, making it easier to “gather” the sound image toward the front. Because the perceived sound changes depending on the mounting position and angle, it’s important not only to replace it, but also to set it up and adjust it to match your front speakers and the acoustic environment inside the vehicle.

An aluminum mount and a stainless-steel ring are included as well, making it easier to achieve both secure mounting and a clean finish. In building a Separate 2-Way system, you need to consider not just the tweeter’s performance alone, but also how it connects with the mid-woofer, the crossover, and the mounting angle.

If it were me, I would decide the combination by first checking how your current speakers and amplifier sound, and how you hear them inside your car, rather than choosing only the product first. Even with the same tweeter, the sound impression can change significantly depending on where and how you mount it.

This model is for those looking to step up from factory speakers, for those who want vocals a bit closer and more naturally presented, and for those who want both fine detail and easy listening. Let’s think together about the mounting method and adjustments based on your vehicle model and current system.

Main Specifications / Specs

【Basic Information】
Product name: ESB9000 NOVEMIRA SERIES Separate 2-Way
Type: Separate 2-Way speaker
Unit: 28mm silk dome
Diaphragm: Genuine Japan-made silk dome
Magnet: Neodymium

【Performance】
Frequency response: 1.4kHz to 25kHz
Sensitivity: 91.5dB
Impedance: 4Ω
Max input: 220W
Minimum resonance frequency: 900Hz
Recommended crossover frequency: 1.8kHz or higher
Recommended cutoff slope: at 12dB/oct

【Mounting Dimensions】
Baffle cutout dimension: 45mm (main) / 75mm (ring)
Frame outer diameter: 49mm (main) / 95mm (ring)
Mounting (recessed) depth: 15mm (main) / 16mm (ring)

【Included / Configuration】
Aluminum mount
Stainless-steel ring

【Weight】
185g / 1 pc (main unit)