Alpine R2-S65C
$350.00
Next-Generation R-Series 6-1/2″ 2-way component speaker system
Your entry to high-res audio. Alpine’s R2-S65C 6-1/2″ component speaker system delivers exceptional audio performance for enthusiasts interested in high-resolution audio playback. Using technology developed for their flagship F#1 Status Series, these Next-Generation R-Series speakers reproduce music with remarkable detail and authenticity while maintaining Alpine’s signature “loud and fun” sound character.
Featured in “Best component car speakers for 2025,” this premium system combines 6-1/2″ glass-fiber woofers with 1″ magnesium dome tweeters and sophisticated crossover networks. The result is a component system that excels at reproducing the full range of musical details with minimal distortion, even at high volume levels.
Product Highlights
- Type: 6-1/2″ 2-way component speaker system
- Power Handling: 100 watts RMS (300 watts peak)
- Frequency Response: 65-40,000 Hz (high-resolution audio capable)
- Sensitivity: 88 dB at 1 watt/1 meter
- Impedance: 4 ohms
Key Features
- Premium Woofer Construction:
- Glass-fiber reinforced cone for lightweight rigidity
- High-Amplitude Multi-Roll (HAMR) rubber surround
- Rigid aluminum frame for minimal distortion
- Ferrite magnet with large motor structure for enhanced mid-bass
- High-Performance Tweeter:
- 1″ magnesium hard dome design
- Swivel-mount capability for optimized imaging
- Multiple mounting options
- Sophisticated Crossover System:
- In-line crossover design
- Adjustable tweeter output levels
- Bi-amp capability
- Flexible Installation:
- Multiple tweeter mounting options
- Includes adapter rings for various applications
Package Contents
- Two 6-1/2″ woofers with grilles
- Two 1″ tweeters with grilles (pre-installed)
- Two in-line tweeter crossovers
- Multiple tweeter mounting housings and adapters
- Various mounting hardware and adapter rings
- Installation documentation
Performance & Power
- Power Handling: 100 watts RMS (300 watts peak)
- Frequency Response: 65-40,000 Hz
- Sensitivity: 88 dB (1W at 1 meter)
- Impedance: 4 ohms
Physical Dimensions
- Woofer Dimensions:
- Frame Diameter: 6.495 inches
- Cutout Diameter: 5-3/8 inches
- Mounting Depth: 2-1/2 inches
- Mounting Height: 0.48 inches
- Tweeter Dimensions (varies by mounting option):
- Flush Mount (swivel):
- Frame Diameter: 2.285 inches
- Cutout Diameter: 2.0 inches
- Mounting Depth: 0.65 inches
- Mounting Height: 0.378 inches
- Angled Surface Mount:
- Frame Dimensions: 1.82″ x 1.71″
- Mounting Height: 1.325 inches
- Factory Location Mount:
- Multiple configurations available for OEM integration
- Flush Mount (swivel):
Materials & Construction
- Woofer:
- Cone Material: Glass-fiber reinforced composite
- Surround: HAMR (High-Amplitude Multi-Roll) rubber
- Frame: Rigid aluminum
- Magnet: Ferrite with large motor structure
- Features: Optimized for minimal distortion and enhanced mid-bass response
- Tweeter:
- Design: 1″ hard dome
- Material: Magnesium
- Features: Adjustable aim (15° pivot in flush mount)
- Wire: 30″ length attached with quick slides
- Crossover Network:
- Woofer: Low-pass filter with 6 dB/octave slope (attached to woofer)
- Tweeter: In-line high-pass filter with 12 dB/octave slope
- Tweeter Level Adjustment: -3 dB, 0 dB (flat), or +3 dB via jumper
- Dimensions: 1.5″ W x 1.25″ H x 2.875″ L (plus wire)
- Wiring: 31″ input wire, 12″ output wire to tweeter
- Mounting: Two-sided tape included
Installation Options
- Woofer Mounting Options:
- Standard Installation: Fits many 6-3/4″ applications without adapters
- With Included Adapters:
- 6-1/2″ applications
- 6-3/4″ applications
- 5″x7″ applications
- 6″x8″ applications
- Tweeter Mounting Options:
- Flush Mount: Pivoting design for sound aiming
- Angled Surface Mount: For dash or pillar installation
- Stealth Mount: For factory location installation
- Top or bottom mounting configurations
- Removable tabs for custom fitting
- Wiring Configuration:
- Standard: Single amplifier connection
- Bi-Amp Capable: Separate woofer and tweeter amplification possible
- Connection Type: Quick slides for easy installation
Size Note
- Alpine markets these as 6-1/2″ woofers, though their larger-than-standard cutout requirement (5-3/8″) means they may be classified as 6-3/4″ in some contexts
- Vehicle compatibility should be confirmed before purchase