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The ESB 3.69 is a 6x9 inch component woofer sold as a pair, rated at 120w RMS and built for accurate, low-distortion sound reproduction.
6x9"/150x230 mm Woofer
The basket is made from ABS reinforced with fiberglass. This keeps the structure rigid under load while allowing air to move freely, reducing back-pressure.
The cone is pressed paper with a waterproof treatment. Paper cones are well regarded for their low weight, natural stiffness, and ability to damp unwanted resonance without colouring the sound.
The surround uses a high-damping single-wave design made from Perbunan® rubber. This material holds its properties across a wider temperature range than standard rubber, making it better suited to real-world installation conditions.
The 25mm voice coil uses an aluminium former wound with a double layer of copper wire around an aluminium core. The combination of materials keeps moving mass low while maintaining electrical efficiency.
A high-grade ferrite magnet drives the assembly, delivering stronger magnetic flux than standard ferrite units for improved motor control and lower distortion at higher excursion levels.
Explore the full range in ESB Audio.
Specification
| Nominal power | 120W |
|---|---|
| Maximum power | 240W |
| Sensitivity | (2,83V/1m) 88.5dB |
| Frequency response | 55-9.000Hz |
| Cone | material Fiber reinforced high strength paper cone |
| Nom. impedance | 4 Ohms |
| DC resistance | 3.14 Ohms |
| VC diameter | 25mm |
| VC height | 10.5mm |
| Former | Aluminum |
| Layers | 2 |
| Magnet | system Ferrite Y-35 |
| Overall dimensions | 165mmx230mmx71mm |
What's Included
- ESB 3.69
ESB Audio
About the ESB Audio 3.69
From our tech experts at CEN
ESB Tremila Series 6x9 inch component speakers, with separate tweeters for mounting where you will actually hear them, rated at 120w RMS.
Who it suits
Drivers building a proper front stage who care about staging and detail. ESB is bought by people who have usually owned a decent system already.
Our tech experts advise
Sizes, adapter rings and harnesses vary by vehicle, year and trim, so we confirm what your car takes before ordering rather than guessing. Door treatment matters as much as the speaker, and these repay both amplification and tuning. Installation is priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. 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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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.
