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The ESB 3.25 is a 1 inch (25 mm) silk dome tweeter from ESB Audio's Tremila Series, rated at 90W RMS (180W transient) at 4 ohms with a neodymium N42 magnet. Sold as a pair.
This listing is the 1 inch (25 mm) ESB 3.25. The Tremila Series tweeter is also available as the ESB 3.28 with a 1.1 inch (28 mm) Torcon® dome.
Key specifications
- Size: 1 inch / 25 mm dome
- Diaphragm: silk-impregnated thin fabric dome
- Power handling: 90W RMS / 180W transient
- Impedance: 4 ohm
- Frequency response: 900 Hz to 25 kHz
- Sensitivity: 92 dB (2.83V/1m)
- Voice coil: 25 mm, ventilated and ferrofluid damped
- Magnet: neodymium N42
3.25 1"/25 mm Dome Tweeter
The ESB 3.25 is the tweeter used in the ESB 3.6K2X 2-way component system, and pairs with the ESB 3.165 Tremila mid-woofer.
The silk-impregnated thin fabric dome diaphragm delivers smooth, natural sound. The outer suspension is covered with a high-loss damping material to eliminate edge vibration and resonance. The dome's extremely low mass reduces susceptibility to mechanical deformation, resulting in a smooth, linear and extended frequency response.
The 25 mm voice coil uses an aluminium support with lightweight copper-coated aluminium wire. It is ventilated and damped with ferrofluid oil for controlled, accurate performance.
ESB's SVS ventilation design keeps the voice coil cool and prevents air compression behind the dome. The neodymium N42 magnet is computer-optimised for improved efficiency and linearity — a significant step up from standard magnet designs.
Explore the full range in ESB Tremila Series.
Specification
| Nominal Impedance | 4 Ohm |
|---|---|
| Nominal Power Handling | 90 Watt |
| Transient Power | 180 Watt |
| Frequency Response | 900 Hz ~ 25 KHz |
| Sensitivity | 92 dB 2.83v/1m |
What's Included
- ESB 3.25
ESB Audio
About the ESB Audio 3.25
From our tech experts at CEN
ESB Tremila Series tweeters, 1 inch, handling 90w 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
More from ESB Audio
More options from the same range, in stock and ready to go
ESB 3.28 Tremila Series 1.1 Inch Dome Tweeter 90w RMS Pair
£79.99
View product
ESB 3.WB8 Tremila Series 8 Inch Active Ported Subwoofer Enclosure 300w RMS
£349.99
ESB 3.165 Tremila Series 6.5 Inch Component Mid Woofer 120w RMS Pair
£119.99
ESB Tremila Series 3.90 3.5 Inch Component Cone Midrange Speaker 60w RMS Pair
£119.99
ESB 3.69 Tremila Series 6x9 Inch Component Woofer 120w RMS Pair
£129.00
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: Is the ESB 3.25 a 1 inch or 1.1 inch tweeter?
A: The 3.25 is a 1 inch (25 mm) dome tweeter. The 1.1 inch (28 mm) Tremila tweeter is the ESB 3.28.
Q: What frequency range does the ESB 3.25 cover?
A: 900 Hz to 25 kHz, with a sensitivity of 92 dB (2.83V/1m).
Q: What is the power rating of the ESB 3.25?
A: 90W RMS with 180W transient power, at a nominal impedance of 4 ohms.
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