Alpine R2-S652 Speakers 6.5 Inch 16.5cm 2022 R Series Pro 2 Way Component 100w
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The Alpine R2-S652 is a 6.5-inch (16.5cm) 2-way component speaker set from the 2022 R-Series PRO line, rated at 100W RMS (300W peak). It pairs glass-fibre reinforced woofers in die-cast aluminium baskets with Hi-Res Audio certified magnesium tweeters and adjustable PRO crossovers.
Key specifications
- Size: 16.5cm (6.5-inch) woofers with 4.3cm tweeters, 2-way component
- Power: 100W RMS, 300W peak
- Impedance: 4 ohms
- Frequency response: 65Hz–40kHz (Hi-Res Audio)
- Sensitivity: 88dB (1W @ 1m)
- Woofer mounting depth: 6.3cm
- Woofer cutout diameter: 13.5cm
- Crossover: PRO X-Over, tweeter level -3/0/+3dB
2022 R-Series component and coaxial speakers
The R-Series speakers are built for high-volume listening with clear, undistorted output. They are tuned to emphasise high- and low-end frequencies, delivering power alongside bright, detailed sound. The full 2022 R-Series line-up is Hi-Res Audio certified with frequency response up to 40kHz, and for the first time includes a 3-way system alongside both Professional and Standard speaker options. The R-Series speakers are designed to pair with R-Series subwoofers and amplifiers.
2-way component PRO speaker
The R2-S652 is the 2-way PRO model in the 2022 R-Series line-up, featuring a 16.5cm door woofer and a 4.3cm tweeter with up to 40kHz frequency response. Alpine's R-Series enters its third generation here, using new materials for greater output and improved sound quality.
Glass-fibre reinforced cone
The door woofer uses a glass-fibre reinforced cone — very stiff and extremely lightweight — for fast response and accurate music reproduction.
Die-cast aluminium basket and large magnets
The PRO models feature die-cast aluminium baskets for high stiffness, allowing larger magnets than previous generations without increasing mounting depth. This applies to both the R2-S652 and the R2-S653.
Hi-Res Audio certified hard dome tweeter
The magnesium hard-dome tweeters reproduce music up to 40kHz and are Hi-Res Audio certified. They can be flush-mounted in their threaded housing or fitted using the included on-dash mounts, and swivel within the housing to aim at the listening position.
Easy-fit tweeter in OEM locations
Remove the installation frame and trim ring and the tweeter is compact enough to fit many OEM locations — including A-pillars, mirror triangles and door panels — for a discreet install.
Flexible PRO X-Over network
The PRO crossover network uses high-quality components and allows independent adjustment of the mid-range and tweeter levels at -3dB, 0dB or +3dB.
HAMR surround
Alpine's HAMR (High-Amplitude Multi-Roll) surround maximises cone excursion while maintaining control, delivering strong bass at high volumes without distortion.
New speaker grilles
The included grilles feature a hexagon design and do not increase the overall installation diameter of the speaker.
Explore the full range in Alpine R2 Series.
Specification
| Maximum Peak Power | 300 Watts |
|---|---|
| Maximum RMS Power | 100 Watts |
| Nominal Impedance | 4 Ohm |
| Frequency Response | 65Hz-40kHz |
| Sensitivity | 88dB SPL (1W @ 1m) |
| Woofer Mounting Depth | 6,3cm |
| Woofer Cutout Diameter | 13,5cm |
More specs
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What's Included
- Alpine R2-S652
- Grilles
- Tweeter Crossovers
- Screws
- Speed clips
Alpine
About the Alpine R2-S652
From our tech experts at CEN
A 6.5 inch component set, with separate tweeters you can mount higher in the door or pillar. Component sets sound better because the tweeter can be aimed towards your ears rather than firing into your knees.
Who it suits
Drivers who want the best result from a door upgrade and are happy for tweeters to be mounted separately, which usually means a professional fit. They will run from a decent head unit, though an amplifier brings out more of them.
Our tech experts advise
Speaker sizes, adapter rings and harnesses vary by vehicle, year and trim, so we check 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 and what the work involves. See car audio installation.
Explore the full Alpine range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Alpine
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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
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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.
Q: How much power can the Alpine R2-S652 handle?
A: They are rated at 100W RMS and 300W peak, with a 4 ohm nominal impedance.
Q: What mounting depth and cutout do the R2-S652 woofers need?
A: The woofer mounting depth is 6.3cm and the cutout diameter is 13.5cm.
Q: Can the R2-S652 tweeters be fitted in factory tweeter locations?
A: Yes. With the installation frame and trim ring removed, the tweeter is small enough for many OEM tweeter locations such as A-pillars, mirror triangles or door panels. They can also be flush-mounted or used with the included on-dash mounts.
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