







Rockford Fosgate R1675X2 Prime 6.75 Inch 2 Way Coaxial Speaker 45w RMS
Couldn't Load Pickup availability
The Rockford Fosgate R1675X2 is a pair of 6.75 inch 2-way full-range coaxial speakers from the Prime range, rated at 45W RMS / 90W max. They feature vacuum polypropylene cones and flush-mounted 0.5 inch silk dome tweeters, and are designed as a direct factory speaker replacement.
Key specifications
- Model: R1675X2
- Size: 6.75 inch, 2-way coaxial (sold as a pair)
- Power handling: 45W RMS / 90W max
- Impedance: 4 ohm
- Frequency response: 52Hz - 20kHz
- Sensitivity: 91dB (1W/1m)
- Mounting depth: 53.8mm (2.19 inch)
- Tweeter: 0.5 inch (12.7mm) silk dome, flush mounted
- Crossover: tweeter high-pass, 6dB/octave
Prime 6.75" 2-Way Full-Range Speaker
The R1675X2 is a straight factory replacement upgrade rated at 45W RMS. Each kit includes two speakers with grilles, integrated high-pass crossovers and all required mounting hardware.
Key Features
- Vacuum polypropylene cone
- Rubber surround
- Stamped steel basket
- 0.5 inch silk dome flush-mounted tweeter
- Integrated tweeter high-pass crossover
- Grilles and mounting hardware included
- Sold in pairs
- 1 year warranty
Explore the full range in Rockford Fosgate Prime.
Specification
| Power Handling | (RMS)45 Watts RMS90 Watts Max |
|---|---|
| Frequency Response | (Hz)52Hz - 20kHz |
| CrossoverTweeter High-Pass (HP) | 6dB |
More specs
| |
What's Included
- Two speakers with grilles
- Integrated high pass crossovers
- Mounting hardware
Rockford Fosgate
About the Rockford Fosgate R1675X2
From our tech experts at CEN
Rockford Fosgate 6.75 inch coaxial speakers, with the tweeter in the centre of the woofer, rated at 45w RMS.
Who it suits
Drivers replacing tired factory speakers who want a clear improvement without complication. Rockford Fosgate has been a fixture of car audio since the 1970s, and the Punch name still means solid, honest output.
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. 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 Rockford Fosgate range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Rockford Fosgate
Recommended For You
Discover more top-rated gear, handpicked to go with what you're viewing

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 is the mounting depth of the R1675X2?
A: The R1675X2 has a midrange mounting depth of 53.8mm (2.19 inch). Check this against the depth available behind your factory speaker location before ordering.
Q: Are grilles included with the R1675X2?
A: Yes. The R1675X2 is supplied with grilles and mounting hardware.
Not Sure Where to Start?
Straightforward advice and the latest news from our Nottingham team.
All Guides and News →
Car Audio
Christmas Gift Guide 2026: Car Audio, Dash Cams and Outdoor Tech
Read the guide →
Car Audio
Upgrading Car Audio Without Replacing the Factory Stereo
Read the guide →
Car Audio
Amplifier Wiring Kits Explained: Gauge, Fuses and Earths
Read the guide →
Car Audio
New at CEN: Option Audio Drive-10Flat — Golf Mk8 Bass, Zero Boot Space Lost
Read more →
Car Audio
Car Speaker Sizes Explained: What Fits Your Car
Read the guide →
Car Audio
Alpine iLX-F905D Halo9 Review: The Big-Screen Upgrade for Almost Any Car
Read more →



































