Alpine R2-S65C Next Gen R-Series 6.5" 100W RMS (300W Peak Power Handling) 4 Ohms, 2-Way Car Component System with Two Magnesium Hard-Dome Tweeters and Two Premium-Grade In-Line Crossover Networks
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What's Inside?
- • (2) Woofers
- • (2) multi-purpose adapter rings (includes GM/Chrysler)
- • (2) 6x8 Adapter rings
- • (2) Woofer grilles
- • (2) Tweeters (each has an attached 30" length of wire terminated with quick slides)
- • (2) Tweeter crossovers (each has attached input and output wires)
- • (2) Tweeter grilles (installed)
- • (2) Flush mount housings (with tweeters installed)
- • (2) Flush mount retention rings
- • (2) Angled surface mount housings
- • (2) Stealth (factory location) brackets
- • (2) Round self-adhesive pads
- • (2) Rectangular self-adhesive pads
- • (8) 1-1/8" Screws
- • (4) 5/8" Screws
- • (8) 1/2" Screws
- • (8) Large speed-clips
- • (4) Small speed-clips
- • (8) M4x12mm Machine screws
- • (4) 5" Zip ties
- • Warranty information
- • On-line product registration information
- • Important Notice
- • Template and specs on box
- • Owner's Manual
Why Choose Alpine R2-S65C Component Speakers
Elite R-Series Technology for Factory Speaker Upgrades
The Alpine R2-S65C brings next-generation R-Series engineering into a compact 6.5 inch component speaker system. Inspired by Alpine’s flagship F#1Status technology, these speakers deliver precise sound reproduction, high efficiency, and improved dynamic range.
- • Ideal for factory speaker upgrade 6.5 inch systems
- • Perfect for car speaker upgrade without subwoofer
- • Hi-Res Audio certified performance up to 40kHz
Clearer Sound, Stronger Midbass, Less Distortion
Engineered for daily driving performance, delivering improved clarity, wider soundstage, and reduced distortion compared to stock factory speakers. These high output component car speakers are ideal for users who want premium sound without a full system overhaul.
Easy Installation & Factory Fitment Flexibility
The Alpine R2-S65C is designed for straightforward installation into most OEM 6.5” speaker locations. With included adapter rings and flexible mounting options, it supports both factory and custom installations.
- • Compatible with most OEM 6.5” speaker locations
- • Works with factory or aftermarket amplifiers
- • Recommended HPF: 70Hz–80Hz
- • Optional amplifier recommended for best performance
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Alpine R2-S652
Next-Gen R-Series 6.5" 300W Peak Power Handling 4 Ohms, 2-Way Car Component Speaker System
HIGH OUTPUT
- • 6.5" Car Speaker
- • 300W Peak Power/100W RMS
- • 2-Way
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- • Magnesium Tweeters
- • Glass-Fiber
- • Premium Crossovers Included
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Alpine R2-S65C DSP Amplifier Guide | Benefits of DSP, Best DSP Amps & Sound Quality Setup
Alpine R2-S65C DSP Amplifier Guide
Why DSP improves soundstage, clarity, midbass control, and tuning flexibility
Benefits of a DSP Amplifier for R2-S65C
Better Sound Stage & Imaging
Time alignment centers vocals on the dashboard and creates a more realistic front soundstage.
Better Tweeter Control
Fine tuning of the 2kHz–8kHz range reduces harshness while maintaining detail and clarity.
Better Midbass Performance
Improved crossover control increases midbass punch and improves subwoofer integration.
Vehicle-Specific Tuning
Corrects door reflections, dashboard reflections, and uneven speaker distances inside the cabin.
Recommended DSP Amplifiers for Alpine R2-S65C
Alpine PXE-C80-88 8-channel DSP with OPTIM™ tuning support. Best Alpine match for full system control and precision tuning.
Kicker KEY200.4 Built-in auto DSP amplifier with compact design and excellent value for factory upgrades.
JL Audio VX400/4i Premium DSP amplifier with audiophile-level tuning accuracy and clean output.
Standard Amp vs DSP Amp for R2-S65C
Power Increase: Both provide clean power when properly matched
Time Alignment: DSP enables precise imaging control
Advanced EQ: DSP offers full tuning flexibility
Tweeter Tuning: DSP reduces harshness and improves smoothness
Soundstage: DSP creates a wider, more centered image
Sub Integration: DSP delivers smoother bass blending
Overall Quality: DSP provides highest performance potential
A standard 4-channel amplifier is sufficient for basic setups. For maximum performance from the Alpine R2-S65C, a DSP amplifier is strongly recommended for improved imaging, smoother highs, and better tuning control.
Frequently Asked Questions (FAQ)
- • Why do my Alpine R2-S65C speakers sound weak after installation?
This is usually caused by underpowered factory head units or poor door sealing, and it can be fixed by adding amplifier power and sealing the speaker properly.
- • Why do my Alpine R2-S65C speakers distort when I turn up the volume?
Distortion is typically caused by incorrect amplifier gain or missing high-pass filters, and it can be fixed by setting proper gain levels and filtering bass frequencies below 70Hz.
- • Why are my Alpine R2-S65C speakers not loud enough?
Low volume is usually due to insufficient amplifier power, and upgrading to a 50–100W RMS amplifier will significantly improve loudness and clarity.
- • Why does my Alpine R2-S65C have no bass after installation?
Lack of bass is often caused by air leaks or improper mounting, and it can be fixed by sealing the speaker and ensuring correct installation depth and fitment.
- • Why don’t my Alpine R2-S65C speakers fit my car properly?
Fitment issues usually occur when factory mounting depth differs, and they can be solved using spacer rings or vehicle-specific adapter brackets.
- • Why do my Alpine R2-S65C speakers sound harsh or bright?
Harsh sound is often caused by EQ settings or lack of break-in time, and it can be improved by adjusting treble levels and allowing proper break-in.
- • Why is one Alpine R2-S65C speaker louder than the other?
This is usually caused by wiring polarity or balance settings, and it can be fixed by checking wiring and adjusting fade/balance controls.
- • How do I get the best sound quality from Alpine R2-S65C speakers?
Best results come from using a clean amplifier, proper door sealing, correct crossover settings, and avoiding excessive bass boost.
Alpine R2-S65C Videos & Reviews
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- Diameter : 6.5 Inch
- Sensitivity : 88 dB
- Frequency Response : 65-40000 Hz
- Peak Power Handling : 300 Watts
- Woofer Composition : Glass Fiber
- Tweeter Composition : Magnesium
- RMS Power Handling : 100 Watts
Features:
- Hi-Res Audio Certified: Delivers exceptional clarity for high-resolution music playback.
- Glass Fiber Reinforced Cone: Provides strength and responsiveness for accurate sound performance.
- Ferrite Magnet Structure: Offers reliable magnetic power for consistent audio output.
- High-Amplitude Multi-Roll (H.A.M.R.) Surround: Allows extended cone excursion for deep, distortion-free bass.
- 2 Premium-Grade Crossover Networks: Ensures precise frequency separation for a balanced sound.
- Magnesium Hard-Dome Tweeters: Features a swivel mount design and threaded removable housing for flexible installation.
- Protective Open Mesh Grilles: Included to safeguard components while maintaining a stylish look.
Specifications:
- Series: R-Series
- Priced Per: Pair
- System Design: 2-Way Component System
- Speaker Size: 6.5 inches (6-1/2")
- Number of Speakers: 2 Woofers + 2 Tweeters
- Hi-Res Audio Certified: Yes
- Shallow Mount Installation: Yes
- Design: Cone
- Material: Glass-Fiber Reinforced
- Surround: High-Amplitude Multi-Roll (H.A.M.R.) Rubber
- Magnet Type: Ferrite
- Top-Mount Depth: 2.48 inches
- Cutout Diameter: 5.31 inches
- Frame Dimensions (W x L): 6.48 x 6.48 inches
- Design: Hard Dome
- Size: 1 inch
- Material: Magnesium
- Mounting Features: Swivel Mount with Threaded Removable Housing
- Peak Power (Per Speaker): 300 Watts
- RMS Power (Per Speaker): 100 Watts
- RMS Power (Per Pair/Set): 200 Watts
- Sensitivity (1W at 1 Meter): 88 dB
- Frequency Response: 65 Hz – 40,000 Hz
- Impedance: 4 Ohms
- Crossover Networks: 2 Premium-Grade In-Line Included
- Grilles: Protective Open Mesh (Black, Steel Mesh, Plastic Frame)
- Weather-Resistant: No
- UPC: 4958043905805
- Weight: 7
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for repair within 1 year from the original date of purchase with proper return authorization.
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I was looking to upgrade my stocks with Focal but the one that I liked was out of the stock when I saw this set on site at a much cheaper price. It really piqued my interest, as I also had some nice history with Alpine. I ordered it and arrived on early date. Installed on my Tundra, and now the sound you’ll hear in my truck is so much better than before.
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Very awesome speakers from Alpine. Its installation was easy on my 4Runner and its really night and day from the speakers that I replaced them from. Sound is so much different in a good way, however its a little bit expensive for some people. But I did not hesitate to splash more money for better audio quality.
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Incredibly detailed sound with bright, clear highs and great mids, though mid-bass is a bit lacking. A bit on the pricey side too.
