



JBL Stage 2 45F 4 Inch 2 Way Coaxial Car Speakers 40w RMS Pair
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The JBL Stage 2 45F is a pair of 4 inch (100mm) 2-way coaxial car speakers rated at 40W RMS, part of JBL's Stage 2 series. They feature Plus One woofers for deeper bass and are supplied without grilles.
The Stage 2 range is also available as the JBL Stage 2 524 in 5.25 inch and the JBL Stage 2 624 in 6.5 inch.
Key specifications
- Size: 4 inch (100mm)
- Type: 2-way coaxial
- Power handling: 40W RMS
- Frequency response: 80Hz – 20kHz
- Impedance: 4 ohms
- Woofer: Plus One
- Grilles: not included
- Sold as: pair
Stage 2 Series 4 inch (100mm) 2-way coaxial car speakers
The JBL Stage 2 45F delivers 40W RMS continuous power with high sensitivity for clear audio at high volumes. The Plus One™ woofer provides powerful, deep bass, and the 80Hz – 20kHz frequency range ensures detailed sound reproduction.
With a 4 ohm impedance and no grille included, these speakers are well suited to tight installation spaces and straightforward to fit in almost any car.
Explore the full range in JBL Stage.
Specification
| Speaker Size | 4" / 100mm |
|---|---|
| Type | 2-Way Coaxial |
| RMS Power | 40W |
| Peak Power | 210W |
| Sensitivity | 90dB |
| Frequency Response | 80Hz – 20kHz |
| Impedance | 4 ohms |
| Grilles | Not Included |
What's Included
- 2x JBL Stage2 GEN2 45F Speakers
- 8x Mounting Screws
- 8x Speed Clips
- 2x Foam Gaskets
- 1x Instruction Manual
JBL
About the JBL Stage 2 45F
From our tech experts at CEN
JBL 4 inch coaxial speakers, with the tweeter in the centre of the woofer, rated at 40w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear, immediate improvement without complication.
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 itself. 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 JBL range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all JBL
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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: Does the JBL Stage2 45F come with grilles?
A: No. The Stage2 45F is supplied without grilles, which suits locations with limited space or where the factory grilles are kept.
Q: What's in the box with the Stage2 45F?
A: Two JBL Stage2 GEN2 45F speakers, eight mounting screws, eight speed clips, two foam gaskets and an instruction manual.
Q: How much power can the Stage2 45F handle?
A: The Stage2 45F is rated at 40W RMS continuous power at 4 ohms.
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