




Helix Compose Basic CB C130.2-S3 Coaxial Speaker Kit 5 Inch 13cm 70w RMS Pair
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The Helix Compose Basic CB C130.2-S3 is a 5.25 inch (130 mm) 2-way coaxial car speaker pair from the Helix Compose Basic range, handling 70W RMS at 3 ohm impedance.
Key specifications
- Size: 5.25 inch / 130 mm coaxial, sold as a pair
- Power handling: 70W RMS
- Impedance: 3 ohms
- Tweeter: 0.75 inch / 20 mm silk dome, neodymium magnet
- Midbass: polypropylene cone, steel basket with ventilation holes
- Crossover: integrated, 6 dB slope
- Frequency response: 80 Hz – 22 kHz
- Installation depth: 51.4 mm
- In the box: 2 x CB C130.2-S3, 1 x mounting material
Helix CB C130.2-S3
The CB C130.2-S3 is a 5.25 inch (130 mm) coaxial speaker kit from the Helix Compose Basic series, supplied as a pair and handling 70W RMS. It is the entry point to the Compose range, designed to deliver all the essentials for a high-quality sound upgrade.
Developed inside the vehicle
Compose is Helix's approach to modern car audio. Developed inside the vehicle, for the vehicle, it combines universal fitment with the advantages of vehicle-specific systems.
3 ohm efficiency
The 3 ohm impedance raises efficiency and maximum sound pressure. Impedances are matched to Helix and MATCH amplifiers, ensuring full performance from the pairing.
The essentials, done right
The Compose Basic line is the entry point to the Compose range. It covers all the essentials for an exceptional listening experience and pairs ideally with Helix and MATCH amplifiers. If you need a compact midrange option in the Compose i3 family, see the Helix Compose i3 Ci3 K100.2FM-S3 Component 4 Inch FlexMount Speakers.
Explore the full range in Helix Compose Basic.
Specification
| Power handling | RMS / Max. 70 / 105 Watts |
|---|---|
| Frequency response | 80 Hz - 22,000 Hz |
| Sensitivity | 90 dB @ 2.83V / 1m |
| Outer diameter | 130.0 mm / 5.12” |
| Installation diameter | 118.0 mm / 4.65” |
| Installation depth | 51.4 mm / 2.02” |
More specs
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What's Included
- 2 x CB C130.2-S3
- 1 x Mounting material
Helix
About the Helix CB22512
From our tech experts at CEN
Helix Compose Basic 5 inch coaxial speakers, with the tweeter mounted in the centre of the woofer, rated at 70w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement without relocating tweeters.
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 and tweeter placement change the result as much as the speaker does. Installation and tuning are 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 Helix range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Helix
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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
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 size is the HELIX CB C130.2-S3?
A: It is a 5.25 inch (130 mm) 2-way coaxial speaker, sold as a pair.
Q: What impedance is the HELIX CB C130.2-S3 and will it work with my head unit?
A: It is a 3 ohm speaker. 3 ohm technology raises efficiency and maximum sound pressure, and it is matched to HELIX and MATCH amplifiers. It handles 70W RMS, so a dedicated amplifier lets it perform at its best.
Q: What tweeter does the CB C130.2-S3 use?
A: A 0.75 inch (20 mm) silk dome tweeter with a neodymium magnet, high-passed by an integrated 6 dB crossover.
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