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Alpine  S2-S65C On Sale

Next Gen S-Series 6.5" 240W Peak Power Handling 4 Ohms, 2-Way Component Speaker System with Two Cloth Dome Tweeters

Item #91691

Condition:   Brand New

Product Highlights

  • Next Gen S-Series
  • 6.5"
  • 240W Peak Power Handling
  • 4 Ohms
  • 2-Way Component Speaker System
  • Two Cloth Dome Tweeters

  Free 2-Years Warranty Included!
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$152.96

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Alpine S2-S65C S-Series 6.5" 80W RMS (240W Peak Power Handling) 4 Ohm, 2-Way Component Speaker System with Two Cloth Dome Tweeters


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We are a Alpine authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!

What's Inside?
  • • (2) Woofers
  • • (2) Woofer mount adapter brackets
  • • (2) Tweeters (each has a 29" length of wire attached)
  • • (2) Flush mount housings (with tweeters installed)
  • • (2) Tweeter grilles (fixed)
  • • (2) 37" Tweeter wires with in-line crossovers (each has quick slides on both ends)
  • • (2) Flush mount retention rings
  • • (2) Stealth brackets
  • • (2) Foam self-adhesive pads
  • • (2) Foam self-adhesive rings
  • • (8) 1-1/8" Screws
  • • (8) M4x6.5mm Machine screws with split lock washers attached
  • • (8) M4 Nuts
  • • (6) Flat washers
  • • (8) Speed clips
  • Owner's Manual

 


Why Choose Alpine S2-S65C Component System?


Alpine S2-S65C 6.5” Component Speaker Upgrade – Clean Sound, Strong Bass & Factory Fit Performance

The Alpine S2-S65C is a premium 6.5-inch component speaker system built for clear sound, strong midbass, and easy factory speaker replacement. With 80W RMS / 240W peak power handling, it delivers clean, dynamic output when paired with a proper amplifier, making it a solid upgrade for stock car audio systems.

HAMR Woofer Technology for Tight Midbass & Low Distortion

Designed with Alpine’s HAMR surround and hybrid cone woofer, the S2-S65C improves bass control, reduces distortion, and delivers punchy midbass performance. Ideal for users searching for best 6.5 component speakers for bass and clarity and OEM door speaker upgrades, it brings tighter, more accurate low-end response.

Silk Dome Tweeters for Clear Vocals & Better Sound Imaging

The 1-inch silk dome tweeters deliver smooth highs and clear vocals without harshness, while the swivel design allows better sound direction and staging. With included grilles for clean installation, the S2-S65C is perfect for anyone looking for a clean, high-quality car audio upgrade with improved clarity and imaging.

 


Alpine 6.5-Inch Component Speaker Comparison Chart | R2-S65C vs S2-S65C vs BRV-S65C vs R2-S652


Ultimate Alpine 6.5" Audio Performance Battle


Alpine R2-S65C
Next Gen R-Series 6.5" 300W Peak Power Handling 4 Ohms, 2-Way Car Component Speaker System

BEST OF 2026
  • • 6.5" Car Speaker
  • • 300W Peak Power/100W RMS
  • • 2-Way
  • • Cone Woofers
  • • Magnesium Tweeters
  • • Glass-Fiber
  • • Premium Crossovers Included
Alpine_S2-S65C

Alpine S2-S65C
Next Gen S-Series 6.5" 240W Peak Power Handling 4 Ohms, 2-Way Car Component Speaker System

TOP SELLER
  • • 6.5" Car Speaker
  • • 240W Peak Power/80W RMS
  • • 2-Way
  • • Cone Woofers
  • • Cloth Tweeters
  • • Polypropylene/Glass Fiber/Mica
  • • High-Res Audio


Alpine BRV-S65C
BASSREV Series 6.5" 150W Peak Power Handling at 4-Ohms, 2-Way Car Component Speaker System

VALUE PICK
  • • 6.5" Car Speaker
  • • 150W Peak Power/50W RMS
  • • 2-Way
  • • Cone Woofers
  • • Cloth Tweeters
  • • Polypropylene/Mica
  • • Optimized for Alpine OPTIM8


Alpine R2-S652
Next-Gen Pro 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
  • • Cone Woofers
  • • Magnesium Tweeters
  • • Glass-Fiber
  • • Premium Crossovers Included

Alpine S2-S65C Highlights


HI-RES AUDIO

Hi-Res Audio Certified

Delivers an extended frequency response up to 40kHz for greater high-frequency detail and a more natural, accurate listening experience.

COMPOSITE CONE

Carbon Fiber Reinforced Cone

The lightweight and rigid carbon fiber-reinforced cone helps deliver clean midrange detail, powerful output and reduced distortion.

H.A.M.R. SURROUND

High-Amplitude Multi-Roll Surround

Alpine H.A.M.R. surround technology allows greater cone excursion while maintaining control for stronger and more accurate bass performance.

SILK DOME TWEETERS

1-Inch Silk Dome Tweeters

Premium 1-inch silk dome tweeters produce smooth, detailed high frequencies with a design that supports flexible positioning and installation.

IN-LINE CROSSOVERS

Integrated In-Line Crossover Networks

Included in-line crossover networks help properly divide frequencies between the woofers and tweeters for balanced component-speaker performance.

POWER HANDLING

80W RMS / 240W Peak

Handles 80 watts RMS and 240 watts peak power, making the S2-S65C an excellent match for a properly tuned aftermarket amplifier.

2-WAY COMPONENT

Complete 6.5-Inch Component System

Includes a pair of 6.5-inch woofers, 1-inch component tweeters, crossover networks and installation hardware for a complete front-stage audio upgrade.

 


Alpine S2-S65C Recommended Amplifiers | Best 4-Channel Amp Pairings for Powerful S-Series Component Sound


Build Your Alpine S2-S65C System
Recommended 4-channel amplifiers for clean power, stronger dynamics, improved midbass control and maximum performance from the Alpine S2-S65C component speakers
Amplifier Matching Overview
S2-S65C Power Rating: 80W RMS per speaker
Ideal Amp Range: 75W – 100W RMS per channel @ 4Ω
Recommended Amplifier: High-quality 4-channel Class-D or Class-AB amplifier
Primary Goal: Deliver clean power, strong midbass control and improved component-speaker dynamics
Best Overall S-Series Match
A natural match for the S2-S65C, providing clean and efficient 4-channel amplification with excellent system synergy for an all-Alpine S-Series sound system.
Best Compact Upgrade
A compact and installation-friendly amplifier that delivers a major upgrade over factory head-unit power. Ideal for OEM integration and space-limited S2-S65C installations.
Best Sound-Quality Match
Delivers 75W RMS x 4 at 4Ω, placing it within the ideal power range for the S2-S65C while providing an excellent balance of clarity, control and dynamic performance.
Best High-Power Upgrade
Delivers 100W RMS x 4 at 4Ω for additional dynamic headroom and stronger output. With proper gain adjustment, it is a strong choice for S2-S65C systems designed for higher listening levels.
Recommended S2-S65C Amplifier Settings
Speaker RMS Rating: 80W RMS per speaker
Recommended Power: 75W – 100W RMS per channel @ 4Ω
High-Pass Filter: Start around 80Hz and fine-tune for the system
Gain Setting: Set gain carefully to provide clean output without clipping or excessive speaker stress
Bass Boost: Off for the cleanest and most accurate component-speaker performance
Amplifier Type: High-quality 4-channel Class-D or Class-AB amplifier
Pro Tip: For the best overall match, pair the Alpine S2-S65C with a properly powered 4-channel amplifier in the 75W to 100W RMS per channel range at 4Ω. The JL Audio RD400/4 provides a close 75W RMS x 4 match, while the Alpine R2-A60F offers additional headroom for higher-output systems with careful gain adjustment.

 


Frequently Asked Questions (FAQ)


  • • Why do my Alpine S2-S65C speakers have weak bass?
    The most common cause is powering the speakers directly from a factory radio. Many owners report improved midbass and overall impact after adding a dedicated amplifier and properly sealing the doors. Also check for reversed speaker polarity, which can significantly reduce bass output.
  • • Why do my Alpine S2-S65C speakers distort when bass hits?
    Distortion is usually caused by insufficient amplifier power, clipping from the head unit, or incorrect crossover settings. Setting a high-pass filter around 70-80Hz can help prevent excessive low-frequency strain on the speakers.
  • • Why do my Alpine S2-S65C tweeters sound too bright?
    Some listeners find the tweeters slightly sharp when installed close to ear level. Reducing treble EQ settings, adjusting tweeter placement, or using DSP tuning can create a smoother sound signature.
  • • Why don't my Alpine S2-S65C speakers get very loud?
    The S2-S65C is designed to perform best with amplifier power. While they can run from an aftermarket head unit, many users report noticeably higher output and better dynamics when powered with 50-80 watts RMS per channel.
  • • Why do my Alpine S2-S65C speakers sound better on one side than the other?
    This is often caused by wiring polarity issues, crossover wiring mistakes, or balance and fade settings. Checking all speaker connections can usually resolve uneven sound output.
  • • Why do my Alpine S2-S65C speakers lose bass after installation?
    Many installers discover that factory door panels leak air around the speaker mounting surface. Using foam speaker rings, sound deadening, and proper mounting adapters can significantly improve bass response.
  • • Do Alpine S2-S65C speakers need a subwoofer?
    The S2-S65C provides strong midbass for a 6.5-inch component set, but it is not designed to reproduce deep sub-bass frequencies. If you want strong low-end impact below 70Hz, adding a dedicated subwoofer is recommended.
  • • Why don't my Alpine S2-S65C speakers fit my vehicle?
    Some vehicles require adapter brackets, spacer rings, or minor modifications due to mounting depth and magnet clearance. Always verify speaker depth and fitment before installation.
  • • Why is one Alpine S2-S65C speaker not working?
    A non-working speaker is typically caused by loose wiring, crossover connection issues, amplifier channel problems, or damaged factory wiring. Inspect all connections before replacing any components.
  • • Are Alpine S2-S65C speakers worth upgrading from factory speakers?
    Most owners report significantly improved clarity, imaging, and detail compared to factory speakers. For the best results, pair them with proper amplification and sound treatment rather than relying solely on factory power.
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    SPECIFICATIONS


    • Diameter : 6.5 Inch
    • Sensitivity : 88 dB
    • Frequency Response : 55-40000 Hz
    • RMS Power Range : 80 Watts
    • RMS Power Handling : 240 Watts

    FEATURES


    Features:

    • Hi-Res Audio Certified: Provides ultra-wide frequency response (55Hz–40kHz) for detailed, high-resolution sound, including frequencies beyond human hearing.
    • Powerful & Clear: Handles up to 80W RMS (240W peak) with low distortion thanks to polypropylene, glass fiber, and mica woofer cone with High-Amplitude Multi-Roll (HAMR) surround.
    • Crisp Highs: 1" cloth dome tweeter with threaded removable housing delivers accurate treble and improved soundstage.
    • Optimized Installation: In-line crossover systems make installation easier while ensuring each driver receives the correct frequencies.
    • Durable & Versatile: 4-ohm impedance and 2.28" mounting depth make integration with aftermarket or factory systems simple and reliable.

     

    Specifications:

    • Configuration: 2-Way Component (Woofer + Tweeter + In-Line Crossover)
    • Woofer Size: 6-1/2"
    • Woofer Material: Polypropylene / Glass Fiber / Mica
    • Surround: High-Amplitude Multi-Roll (HAMR)
    • Tweeter Size: 1"
    • Tweeter Material: Cloth Dome
    • Frequency Response: 55 Hz – 40,000 Hz
    • Max RMS Power: 80 W
    • Peak Power Handling: 240 W
    • Sensitivity: 88 dB
    • Impedance: 4 Ohms
    • Mounting Depth: 2.28"
    • Hi-Res Audio Certified: Yes
    • Included Components: 2 Woofers, 2 Tweeters, In-Line Crossovers, Threaded Removable Tweeter Housings
    • UPC: 793276085030
    • Weight: 8
    • 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.

    Do you own this product?

    Write a review!
    • Man, I'm loving these speakers! Got 'em to swap out the boring stock ones in my new ride, and what a difference they make. While they don't bring tons of bass to the party, the mid-range is just excellent. If you're all about that bass, you gotta go grab a woofer, no doubt. I went the extra mile and tossed in an Alpine 4 channel amp and a subwoofer under the seat, and now my sound system is on a whole new level of awesome!

      Ted
      11/8/2023

    • The speakers produce some great bass. Tweeters are nice. Great budget speakers for upgrade.

      Bryan
      6/25/2025

    • the speakers sounded great even with my cheap amp. mid bass is much better than the stock and highs are really loud but it can also be a little piercing if you push it too much.

      John
      9/8/2025
    free installation

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