ESB 9.1T-25 Novemila Series 1 Inch High End Silk Dome Tweeter 100w RMS Pair
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The ESB 9.1T-25 is a 1 inch (25 mm) silk dome tweeter from ESB Audio's Novemila Series, rated at 100W RMS / 200W transient at 4 ohms with an N52H neodymium magnet. Sold as a pair.
Also in the Novemila Series: the ESB 9.1T-28 1.1 inch tweeter and the ESB 9.6W 6.5 inch mid-woofer.
Key specifications
- Size: 1 inch / 25 mm dome
- Dome: resin-impregnated silk with integrated suspension
- Power handling: 100W RMS / 200W transient
- Impedance: 4 ohm
- Frequency response: 1.6 kHz to 25 kHz
- Sensitivity: 91.5 dB (2.83V/1m)
- Magnet: N52H neodymium
- Voice coil: 25 mm aluminium with copper-clad aluminium winding
- Terminals: gold-plated copper
9.1T-25 1"/25 mm High-End Dome Tweeter
The dome is resin-impregnated silk with an integrated suspension, formed as a single piece. This reduces weight for accurate high-frequency reproduction and eliminates joints that could cause break-up or vibration.
The N52H neodymium magnet offers a high magnetic force-to-mass ratio and handles temperatures up to 120°F — significantly better than the 80°F limit of a standard neodymium magnet.
The pole cup features twelve axial holes in the base to release air back pressure caused by dome movement. This reduces distortion from deformation of the silk dome and lowers the tweeter's resonance frequency.
A threaded hole on the rear of the tweeter expands installation options, including unconventional mounting locations inside a vehicle. The main body is ABS with a magnet plate made from ultra-low-carbon steel.
Connecting cables are super flexible with a high silver content to minimise electrical connection losses. Additional features include a felt damper to control dome resonance and a lightweight stainless steel grille for dome protection.
Explore the full range in ESB Novemila & Ottomila.
Specification
| Nominal Impedance | 4 Ohm |
|---|---|
| Nominal Power Handling | 100 Watt |
| Transient Power | 200 Watt |
| Frequency Response | 1.6 KHz ~ 25 KHz |
| Sensitivity | 91.5 dB 2.83v/1m |
What's Included
- ESB 9.1T-25
ESB Audio
About the ESB Audio 9.1T-25
From our tech experts at CEN
ESB tweeters, 1 inch, handling 100w RMS, a dome design.
Who it suits
Drivers building or repairing a front stage where the tweeter needs mounting on the pillar or dash rather than down in the door.
Our tech experts advise
Placement and aiming change the result more than the tweeter does, and they must be crossed over so they are never asked to play too low. get in touch. See car audio installation.
Explore the full ESB Audio range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all ESB Audio
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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Frequently Asked Questions
Q: Will these speakers fit my car?
A: Most car speakers are standard sizes, but mounting depth and fitting rings vary by vehicle. Check the size in the Specification tab against your vehicle, or contact CEN with your registration and we will confirm fitment and any adapters or fitting kits you need.
Q: Do I need an amplifier to run these speakers?
A: Not always. Most speakers will run from a standard head unit, but a dedicated amplifier lets them perform at their best, particularly for component sets and higher power handling models. The RMS figure in the Specification tab is the guide to how much clean power they can use.
Q: What is the difference between coaxial and component speakers?
A: Coaxial speakers combine the tweeter and woofer in one unit for a simple like-for-like upgrade. Component sets separate the tweeter and woofer with a crossover for better imaging and detail, and suit installs where sound quality is the priority.
Q: Do these come as a pair?
A: Unless stated otherwise, car speakers are sold in pairs. Check the product title and What's Included tab, which lists exactly what is in the box.
Q: Can CEN fit these speakers for me?
A: Yes. CEN offers professional installation from our Nottingham premises. Contact us to book an installation slot or ask for a fitting quote.
Q: What is the difference between the ESB 9.1T-25 and 9.1T-28?
A: The 9.1T-25 is a 1 inch (25 mm) tweeter rated at 100W RMS with a 1.6 kHz to 25 kHz response and 91.5 dB sensitivity. The 9.1T-28 is a 1.1 inch (28 mm) tweeter rated at 110W RMS with a 1.4 kHz to 25 kHz response and 94.5 dB sensitivity.
Q: How can the ESB 9.1T-25 be mounted?
A: The back of the tweeter has a threaded hole, which greatly increases the installation options in unconventional locations inside the car.
Q: What frequency range does the ESB 9.1T-25 cover?
A: 1.6 kHz to 25 kHz, with a sensitivity of 91.5 dB (2.83V/1m).
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