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The ESB 3.28 is a 1.1 inch (28 mm) dome tweeter from ESB Audio's Tremila Series, handling 90W RMS (180W transient) at 4 ohms. It features a Torcon® diaphragm and a neodymium N42 magnet, and is sold as a pair. It is the tweeter used in the ESB 3.6K3 3-way component system.
Need a 1 inch tweeter instead? The ESB 3.25 is the 25 mm Tremila silk dome tweeter. The matching Tremila mid-woofer is the ESB 3.165.
Key specifications
- Size: 1.1 inch / 28 mm dome
- Diaphragm: Torcon®
- Power handling: 90W RMS / 180W transient
- Impedance: 4 ohm
- Frequency response: 900 Hz to 25 kHz
- Sensitivity: 94 dB (2.83V/1m)
- Voice coil: 28 mm, ventilated and ferrofluid damped
- Magnet: neodymium N42
3.28 1.1"/28 mm Dome Tweeter
A high-performance 28 mm dome tweeter built for detail, low distortion and extended high-frequency response.
The Torcon® diaphragm delivers a smooth sound, with an outer suspension coated in high-loss damping material to eliminate edge vibration and resonance. The extremely low-mass dome resists mechanical deformation and provides a smooth, linear and very extended response.
The 28 mm voice coil uses an aluminium support with light copper-coated aluminium wire. It is ventilated and ferrofluid damped, with ESB's SVS ventilation design providing optimal cooling and preventing air compression behind the dome.
The neodymium N42 magnet is optimised using computer simulations for improved efficiency and linearity, offering significantly higher performance than standard magnets.
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 | 94 dB 2.83v/1m |
What's Included
- ESB 3.28
ESB Audio
About the ESB Audio 3.28
From our tech experts at CEN
ESB Tremila Series tweeters, 1.1 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.WB8 Tremila Series 8 Inch Active Ported Subwoofer Enclosure 300w RMS
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ESB 3.12D4 3000 Series 12" Dual 4 Ohm Subwoofer 300w RMS
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ESB 3.6K2X 6.5 Inch 2 Way Component Speaker System with 1 Inch Tweeter Pair
£179.99
ESB Tremila Series 3.90 3.5 Inch Component Cone Midrange Speaker 60w RMS Pair
£119.99
ESB 3.65 Tremila Series 2.5 Inch Component Cone Wide Range 60w RMS Pair
£99.99
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 3.28 and the 3.25?
A: Both are Tremila Series tweeters rated at 90W RMS with a 900 Hz to 25 kHz response. The 3.28 has a larger 28 mm Torcon® dome and 94 dB sensitivity, while the 3.25 has a 25 mm silk-impregnated fabric dome and 92 dB sensitivity.
Q: What frequency range does the ESB 3.28 cover?
A: 900 Hz to 25 kHz, with a sensitivity of 94 dB (2.83V/1m).
Q: What is the power rating of the ESB 3.28?
A: 90W RMS with 180W transient power, at a nominal impedance of 4 ohms.
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