Installed at Mediocre Customs, Cary IL. We fit them at our Cary shop with the right adapters or custom pods, then wire and tune them so the front stage sounds right from the driver's seat.
The ESB 9.1T-28 is the flagship tweeter of ESB's 9000 (Novemila) series, winner of the EISA In-Car High-End Component award for 2024–2025. A 1.1-inch pure silk dome, an N52H neodymium motor with a secondary magnet, and ESB's TCA and FCA airflow control systems give it 94.5 dB of sensitivity and clean, fast, ring-free highs.
Highlights
- 1.1-inch pure silk dome with integrated suspension
- N52H neodymium main magnet plus secondary magnet
- TCA rear-airflow and FCA damping systems to control dome resonance
- Super-light aluminum voice coil
- 110 W nominal / 220 W transient
- 1.4 kHz – 25 kHz, 94.5 dB sensitivity
- Optional 9.1T-28 Ring CNC flange for spaces up to 95 mm
- Made in Italy
Best for
High-end 3-way front stages where the tweeter has to play low and loud without strain. Pair it with the 9.3M or 9.4M midrange and the 9.6W mid-woofer.
Specifications
| Type |
1.1"/28 mm Dome Tweeter |
| Cone / Dome |
Silk Dome Tweeter |
| Magnet |
N52H Neodymium Magnet |
| Voice coil |
Super Light Aluminum Voice Coil |
| Nominal impedance |
4 Ohm |
| Nominal / Transient power |
110 W / 220 W |
| Frequency response |
1.4 KHz ~ 25 KHz |
| Sensitivity (2.83V/1m) |
94.5 dB |
| Features |
Optional gun metal anodized 9.1T-28 Ring flange for spaces up to 95 mm |
Professional install at Mediocre Customs
- Door, dash or kick-panel mounting with adapters or custom pods as needed
- Door sound treatment on request
- Wiring to your amp, DSP or radio
- Crossover setup or active tune
Typical install time: 2–6 hours depending on the vehicle and system
Vehicles we do this in: Daily drivers, trucks, Jeeps and classics.
Buy online, pick up and install in store. Message us to discuss your build and book your install.
Questions we get in the shop
Can I buy it online and have you install it?
Yes. Order here, pick in-store pickup, and we hold it for your install day. You can also buy it at the counter.
Will they fit my factory locations?
Most vehicles take these with an adapter. Bring it in and we'll check depth and tweeter spots.
Do I need an amp?
They'll run off a radio, but they sound their best with clean amp power. We'll set you up either way.
Why buy from Mediocre Customs
We're an authorized ESB Audio dealer, and we install what we sell at our shop in Cary, IL. Everything is priced at MSRP. Order online for in-store pickup, or stop by the counter, and we'll get it installed and tuned right the first time. Questions about your build? Talk to us.
