Alpine R2-S65C Review: The Standard R2 Component Set, and How It Differs From the Pro Sets
Updated: Oct 6
The Alpine R2-S65C is the standard, non-Pro 6.5-inch two-way component set in Alpine's R2 range: two 165 mm glass-fibre reinforced woofers, two 25 mm magnesium hard-dome tweeters and in-line high-pass networks, rated at 100 W RMS (300 W peak) into 4 Ω. At an Indian MRP of ₹32,999 it is the most affordable of the three R2 component sets we stock, below the R2-S652 Pro two-way (₹36,999) and the R2-S653 three-way (₹55,999). It suits buyers who want separate tweeters for a better soundstage and an amplifier-ready rating, without paying for die-cast baskets and full crossover boxes. See the current price on our R2-S65C product page.
Key takeaways
This is the standard R2 component set: composite woofer baskets and in-line high-pass networks. The Pro R2-S652 adds die-cast aluminium baskets and full passive crossovers.
Alpine UK gives it the same core figures as its R2 siblings: 100 W RMS, 88 dB, 65 Hz – 40 kHz, 63 mm woofer depth and a 135 mm cutout.
The magnesium tweeters can be flush-mounted or sit on the dash, with a three-step level setting (−3, 0 or +3 dB).
Owners praise the detail and clear highs; one found the midbass lacking, and one Best Buy buyer reported rattles.
Alpine R2-S65C specifications
Specification | Alpine R2-S65C |
|---|---|
Type | 6.5-inch (16.5 cm) two-way component set, standard R2 model |
Power handling | 100 W RMS / 300 W peak |
Nominal impedance | 4 Ω |
Sensitivity (1 W / 1 m) | 88 dB |
Frequency response | 65 Hz – 40 kHz |
Woofer | 165 mm glass-fibre reinforced cone, composite basket |
Tweeter | 25 mm magnesium hard dome, swivel mount, removable threaded housing |
Tweeter mounting | Flush-mount or on-dash |
Crossover | In-line high-pass networks |
Tweeter level | −3 / 0 / +3 dB |
Woofer mounting depth | 63 mm |
Woofer cutout | 135 mm |
Grilles | Included |
India MRP | ₹32,999 |
Figures come from Alpine UK's R2-S65C page, with the tweeter housing and crossover description from Alpine USA and the 25 mm tweeter size from Alpine Asia, which our listing follows; Alpine UK's own table lists the tweeters as 4.3 cm.
Standard or Pro: how the three R2 component sets differ
The three R2 component sets look alike in the box and share most published numbers, so here is what actually separates them, from Alpine's own pages:
R2-S65C (₹32,999): composite woofer baskets, in-line high-pass networks, and a tweeter level you can set in three steps.
R2-S652 (₹36,999): the same woofer and tweeter sizes, but die-cast aluminium baskets and two full passive crossover networks that adjust the 6.5-inch driver's level (Alpine UK calls it the mid-range level) as well as the tweeter's.
R2-S653 (₹55,999): a three-way set that adds a midrange driver (Alpine UK lists 9.6 cm, Alpine India 90 mm and Alpine USA 3 inches), die-cast baskets for woofer and midrange, and full passive networks with midrange and tweeter level settings.
Alpine UK rates all three at 100 W RMS, 88 dB and 65 Hz – 40 kHz, with the same 63 mm woofer depth and 135 mm cutout. On paper, then, spending more doesn't buy a louder or deeper set. It buys stiffer baskets, more elaborate crossovers and, in the three-way, a dedicated midrange.
Tweeters, networks and tuning
Separate tweeters are the whole point of a component set. Alpine's magnesium domes sit in a swivel mount with a threaded, removable housing, so they can be flush-mounted in an A-pillar or sail panel, or placed on the dash and aimed towards the listener. Raising them from door level lifts the stereo image towards the windscreen, which is the main audible gain over a coaxial.
Alpine describes the networks as in-line, high-pass units: compact filters that protect and shape the tweeter, rather than the full crossover boxes of the Pro sets. The three-step tweeter level is handy in Indian cars with steeply raked glass, where a tweeter bouncing off the windscreen can sound bright; stepping it down is often all the tuning a passive system needs.
Amplifier pairing
With 88 dB sensitivity, the R2-S65C will play from a head unit, but its 100 W RMS rating is a clear invitation to add power. Alpine's R2-A60F, rated by our listing at 100 W RMS per channel into 4 Ω, matches it exactly and leaves two channels for rear speakers. The S2-A36F at 60 W RMS per channel is a lower-priced option. Set gains with a test tone, high-pass the woofers if a subwoofer is in the system, and keep clipping away from those tweeters.
What owners and reviewers say about the Alpine R2-S65C
All the feedback we found is from US retailers. This is the picture when we checked in October 2026.
Best Buy lists nine reviews averaging 4.6 out of 5, with eight five-star ratings and 89% of reviewers recommending the set. Owners praise clarity, crisp highs and clean mids (one runs them from a Rockford Fosgate four-channel amplifier), and say the set holds up under power, plays loud and installs easily. One fitted two sets alongside an Alpine six-channel amplifier and an R-Series subwoofer. The one-star review reports rattling from both speakers even with the stereo off; the reviewer took the car to a dealer to check the doors, and the review does not say how it ended. Every review carries Best Buy's promo considerations or sweepstakes label.
Three reviews on OnlineCarStereo, from February 2024 to March 2025, describe a big step up from stock speakers, easy installation, and detailed sound with bright, clear highs and good mids. One owner found it better than expected for less money than Focal alternatives. The reservations: one reviewer found the midbass lacking, and two call the price high. OnlineCarStereo moderates reviews, so treat that tally as a favourable sample.
R2-S65C vs S2-S65C and the R2-S65
The S2-S65C costs ₹15,000 less at MRP (₹17,999). Alpine UK gives it the same 88 dB sensitivity, a deeper quoted 55 Hz – 40 kHz response, in-line crossovers and a swivel tweeter housing of its own, so it is closer than the price suggests. The R2-S65C's published advantages are power handling, 100 W RMS against 80 W, and a tweeter specified as magnesium with a published level setting; Alpine UK lists neither detail for the S2. If you will stay on head-unit power, the S2 set is the cheaper option.
If you don't need separate tweeters, the R2-S65 coaxial shares these woofer figures for ₹8,000 less. For more hardware, the R2-S652 is the Pro two-way step and the R2-S653 the three-way.
Who should buy it, and who shouldn't
Buy the R2-S65C if you want a proper component layout with raised tweeters, plan to run it from an amplifier, and want the R2 rating without paying extra for the Pro hardware.
Look elsewhere if you want die-cast baskets and full crossover boxes (the R2-S652), a dedicated midrange on top of those (the R2-S653), or a lower cost for head-unit use (the S2-S65C). Midbass fans should also plan on a subwoofer, given one owner's comment.
Installation notes for Indian cars
Check the door opening against Alpine's 135 mm cutout and 63 mm depth with the window down; many doors need an adapter ring. Damp the door skin and seal the inner panel while it's open, following our sound damping guide. Decide on tweeter positions before ordering: if your car has factory tweeter locations in the dash corners or pillars, ask us whether the R2 tweeters can use them with an adapter.
Tuck the in-line networks somewhere dry and secure, not in the door's wet zone. If you later add a DSP, our explainer on why DSP matters covers time alignment. VA3 Car Studio offers professional installation at our Ghaziabad studio.
Price and where to buy
The R2-S65C carries an MRP of ₹32,999 in our current Indian price list. We often sell below MRP, so check the current offer on the R2-S65C product page. Every set we sell is a genuine Alpine product.
The bottom line
The R2-S65C is the sensible way into Alpine's R2 component sets: magnesium tweeters you can mount high, a 100 W RMS rating and simple in-line networks. The Pro sets add hardware rather than headline figures, so unless you want die-cast baskets or a three-way layout, this is the one to pair with a good amplifier and a well-damped door.
Alpine R2-S65C FAQ
What is the difference between the Alpine R2-S65C and the R2-S652?
Both are 6.5-inch two-way sets with the same published power, sensitivity and response. The R2-S652 is the Pro model, with die-cast aluminium baskets and full passive crossover networks; the R2-S65C uses composite baskets and in-line high-pass networks.
Can the R2-S65C tweeters be mounted on the dashboard?
Yes. Alpine lists flush-mount and on-dash options, and the tweeters sit in a swivel mount with a removable threaded housing, so they can be aimed towards the listener.
Does the R2-S65C need an amplifier?
Not strictly. Its 88 dB sensitivity lets a head unit drive it, but the 100 W RMS rating means an amplifier such as the R2-A60F lets it play louder and cleaner without straining the tweeters.
Buy Alpine Speakers in India
You can buy the Alpine R2-S65C Hi-Res 6.5 Inch 2-Way Component Speakers online from VA3 Car Studio with pan-India shipping. See more Alpine speakers, compare other component speakers, or book component speaker installation in Ghaziabad.
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