Alpine BRV-S40 BASSREV Series 4" 40W RMS (120W Peak Power Handling) at 4-Ohms, 2-Way Coaxial Car Speakers (pair) - Optimized for Alpine OPTIM8® with OPTIM™Sync Technology
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What's Inside?
- • (2) 2-way Speakers
- • (6) 3/4" Screws
- • (6) Speed clips
- • Warranty information
- • Important Notice
- • On-line product registration information
- • Specifications on box
- • Owner's Manual
Why Choose Alpine BRV-S40 Full Range Car Speakers?
High-Excursion HEDGE™ Surround – Big-Speaker Sound from a Compact 4" Coaxial
Alpine’s HEDGE™ surround on BassRev™ speakers acts like performance suspension for your woofer. On the BRV-S40, this innovative surround lets the 4" cone move farther with control, turning extra excursion into real, cabin-filling impact—not wasted motion. That linear movement delivers stronger low-end presence and fuller mids, giving the BRV-S40 the power and impact of a larger 6.5" driver while keeping mids smooth and vocals crystal clear. The result is big-speaker feel from a compact 4" coaxial.
Engineered for Power and Style
The Ferrite Magnet delivers stable magnetic performance for clear, consistent sound quality, while the Gun Metal Chemical Topcoat adds a bold, premium look and durable protection that keeps your speaker looking as good as it sounds.
OPTIM Sync™ DSP Integration — Unlock the Full Potential
The BassRev™ BRV-S40 delivers outstanding performance on its own, but when paired with Alpine’s OPTIM8 DSP/Amplifier using OPTIM Sync™, it transforms into a truly remarkable system. OPTIM Sync applies BassRev-specific tuning, featuring dynamic bass enhancement and precisely tailored pre-EQ to safely extend low-end output and refine tonal balance. The result is richer, deeper, and more natural sound that feels larger than life—delivering an immersive listening experience no standalone speaker can match.
Alpine 4-Inch Speaker Comparison Chart | S2-S40 vs S2-S40C vs BRV-S40 vs BRV-S40C
| Ultimate Alpine 4" Speaker Performance Comparison |
Alpine S2-S40 Next-Gen S-Series 4" Coaxial Speaker – Easy OEM Upgrade with Hi-Res Audio & Clean Sound
BEST VALUE
- • 4" 2-Way Coaxial Speaker
- • 45W RMS / 140W Peak
- • 3/4" Cloth-Dome Tweeter
- • 100Hz–40kHz Frequency Response
- • H.A.M.R. Surround Technology
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Alpine S2-S40C Next-Gen S-Series 4" Component Speaker System – Improved Soundstage with Separate Tweeters
BEST COMPONENT
- • 4" 2-Way Component System
- • 45W RMS / 140W Peak
- • 1" Cloth-Dome Tweeter
- • 97Hz–40kHz Frequency Response
- • In-Line Crossover Networks
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Alpine BRV-S40 BassRev™ 4" Coaxial Speaker – Enhanced Low-Frequency Performance in a Compact Design
BASS FOCUSED
- • 4" 2-Way Coaxial Speaker
- • 40W RMS / 120W Peak
- • BassRev™ Technology
- • 75Hz–20kHz Frequency Response
- • HEDGE™ Surround Technology
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Alpine BRV-S40C BassRev™ 4" Component Speaker System – Maximum Compact-Speaker Bass Performance with OPTIM™ Sync
ULTIMATE BASSREV
- • 4" 2-Way Component System
- • 40W RMS / 120W Peak
- • BassRev™ Technology
- • Separate Cloth-Dome Tweeter
- • OPTIM™ Sync / Active DSP Ready
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Alpine BRV-S40 Highlights
BASSREV COAXIAL
4" 2-Way Coaxial Speaker
Enjoy powerful sound from a compact 4-inch speaker with an integrated tweeter that delivers clear highs and balanced audio.
ENHANCED BASS
HEDGE™ Surround
The HEDGE™ surround allows controlled cone movement for improved bass response and stronger low-frequency performance.
HIGH EXCURSION
Lapel Cone Design
The unique lapel cone design helps increase speaker excursion for strong output while maintaining clean and detailed sound.
QUALITY CONSTRUCTION
Polypropylene & Mica Cone
Built with a polypropylene and mica cone for a rigid design that helps deliver clean mids, controlled bass, and reliable performance.
POWER HANDLING
40W RMS / 120W Peak
With 40 watts RMS and 120 watts peak power handling, the BRV-S40 is ready for a noticeable upgrade over many factory speakers.
OPTIM™ SYNC
Optimized Alpine Sound
Pair with compatible Alpine OPTIM8® systems to take advantage of OPTIM™ Sync tuning designed to enhance BassRev speaker performance.
SPACE-SAVING DESIGN
Compact 1-3/4" Mounting Depth
The compact mounting depth makes the BRV-S40 a practical choice for select factory locations where installation space is limited.
Alpine BRV-S40 Recommended Amplifiers | Best OPTIM8 DSP & 4-Channel Amp Pairings for Maximum BassRev Performance
Build Your Alpine BRV-S40 System
Recommended DSP amplifiers and 4-channel amp pairings for BassRev™, OPTIM™ Sync and enhanced low-frequency performance
Amplifier Matching Overview
BRV-S40 Power Rating: 40W RMS / 120W Peak per speaker
Ideal Amp Range: 40W – 60W RMS per channel @ 4Ω
Recommended Amplifier: High-quality DSP amplifier or 4-channel Class-D amplifier
Primary Goal: Deliver clean power and unlock enhanced BassRev™ low-frequency performance
Best Setup: Alpine OPTIM8® DSP amplifier with OPTIM™ Sync enabled
Best Overall Match – OPTIM8® DSP Amplifier
The ideal match for the BRV-S40, combining built-in DSP processing with Alpine OPTIM™ Sync technology. The system applies BassRev-specific tuning to enhance low-frequency output while optimizing the speaker's overall response.
Best Traditional Alpine Amplifier Option
Delivers 60W RMS x 4 at 4Ω, providing clean Alpine Class-D power and useful headroom for the 40W RMS BRV-S40 when the gain is properly adjusted.
Best Compact Premium Option
Provides 75W RMS x 4 at 4Ω, giving the BRV-S40 strong clean-power headroom in a compact chassis. Proper gain adjustment is recommended to match the speaker's 40W RMS rating.
Best Sound-Quality Upgrade
Delivers 75W RMS x 4 at 4Ω, offering clean output and strong speaker control. A good premium option for BRV-S40 systems using an external DSP or factory-system integration.
Why OPTIM8® Is the Recommended Choice
OPTIM™ Sync: Applies BassRev-specific tuning designed for the BRV-S40
Dynamic Bass Enhancement: Intelligently boosts low-frequency performance while maintaining safe speaker operation
Pre-EQ Optimization: Smooths tonal balance and improves the overall sound response
DSP Tuning: Provides precise control over EQ, crossover settings and time alignment
OEM Integration: Helps optimize aftermarket BRV-S40 speakers in factory audio systems
Maximum BassRev Performance: Alpine specifically identifies the OPTIM8® pairing as the way to unlock the BRV-S40's maximum output potential
Recommended BRV-S40 DSP & Amplifier Settings
Speaker RMS Rating: 40W RMS per speaker
Recommended Power: 40W – 60W RMS per channel @ 4Ω
Amplifier Type: DSP amplifier or quality 4-channel Class-D amplifier
Gain Setting: Set gain carefully to provide clean output without clipping or excessive speaker stress
EQ Strategy: Start with a flat response and use OPTIM™ Sync when paired with Alpine OPTIM8®
High-Pass Filtering: Use appropriate crossover protection based on the installation and system tuning
Best Practice: Add door or dash-area sound treatment where possible to improve clarity and reduce unwanted resonance
Pro Tip: While a quality 40W–60W RMS amplifier can provide excellent performance with the Alpine BRV-S40, the Alpine PXE-C80-88 is the best overall match for unlocking the full BassRev™ experience. Alpine OPTIM™ Sync adds speaker-specific dynamic bass processing and pre-EQ to help this compact 4-inch coaxial speaker deliver the larger-than-life sound it was designed for.
Frequently Asked Questions (FAQ)
- • Will these speakers fit my factory dashboard or rear deck openings?
They are designed for vehicles that use 4-inch speakers, but fitment varies by make and model. Check your factory speaker size and mounting depth before purchasing.
- • How much power do they need to sound their best?
Rated at 40 watts RMS and 120 watts peak per speaker at 4 ohms, a moderately powered aftermarket amp is enough to bring out their full output without overdriving them.
- • Why do the speakers sound thin after replacing the factory ones?
Small full-range speakers naturally produce less bass than larger door speakers. Pairing them with a subwoofer creates a fuller sound.
- • Do I need speaker adapters or mounting brackets?
Some vehicles require brackets or wiring adapters for a proper installation. Using vehicle-specific accessories makes installation easier and avoids modifying factory wiring.
- • Why do I hear distortion when the volume is turned up?
Distortion is often caused by clipping from the factory radio or excessive EQ settings. Lowering the gain or adding an external amplifier usually solves the issue.
- • Can these speakers improve vocal clarity?
Yes, they are designed to reproduce midrange and high frequencies with greater detail than many factory speakers. Vocals and instruments should sound cleaner and more defined.
- • Why is one speaker louder than the other after installation?
A loose wire, incorrect polarity, or stereo balance setting is usually responsible. Inspect the wiring and audio settings before assuming the speaker is defective.
- • Is the sound noticeably different without OPTIM Sync processing enabled?
Without being paired to the OPTIM8 and its OPTIM Sync algorithm, the low-frequency extension these speakers are tuned for won't be fully realized. They still perform as solid standalone coaxial speakers on a regular amp or head unit, just without that extra bass reach.
- • How can I get the best performance after installation?
Mount the speakers securely and use proper sealing to reduce unwanted vibrations. Fine-tuning your equalizer will also help achieve a more balanced sound.
Alpine BRV-S40 Related Videos
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- Diameter : 4 Inch
- Sensitivity : 84 dB
- Impedance : 4 Ohm
- Frequency Response : 75-20000 Hz
- Peak Power Handling : 120 Watts
- Design : 2 Way
- RMS Power Handling : 40 Watts
Features:
- High Excursion Design Gathered Edge (H.E.D.G.E.) Surround: Delivers powerful output and deeper low-frequency extension for impactful bass performance.
- Unique Lapel Cone Shape: Designed for high excursion, enhancing cone movement and producing clearer, more dynamic sound.
- OPTIM™ Sync Technology: Offers pre-EQ selection tailored to each driver (requires PXE-C80-88 with version 3.0 or newer) for precise tonal balance and superior tuning.
- Polypropylene and Mica Cone Construction: Combines strength and rigidity for accurate sound reproduction and long-lasting durability.
- Ferrite Magnet: Ensures stable magnetic performance for consistent, high-quality audio delivery.
- Gun Metal Chemical Topcoat: Provides a sleek, premium aesthetic while protecting the speaker’s surface for lasting appeal.
Specifications:
- Woofer Size: 4”
- Tweeter Size: 0.75”
- Maximum Peak Power: 120W
- Maximum RMS Power: 40W
- Frequency Response: Without BassRev 75 Hz – 20k Hz, With BassRev 67 Hz – 20k Hz
- Impedance: 4 Ohm
- Sensitivity: 84dB
- 30% SPL increase for increased loudness
- 25% X-Max increase for increased cone movement
- Mounting Depth: 45mm (1.77”)
- UPC: 793276002372
- Weight: 10
- 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.