Alpine BRV-S40 BassRev 4" Coaxial 2-Way Car Speakers (BRVS40)

Alpine BRV-S40 BassRev 4" Coaxial 2-Way Car Speakers (BRVS40)

The Alpine BRV-S40 proves that size doesn’t define power. This compact 4" coaxial speaker set delivers the kind of deep, room-filling sound you'd expect from much larger speakers. Designed with Alpine’s BassRev™ technology, the BRV-S40 transforms every note into a richer, fuller listening experience that feels alive in your car cabin.

Engineered for Powerful Performance

The BRV-S40’s HEDGE™ Surround (High Excursion Design Gathered Edge) acts like a performance suspension system for your woofer. It allows the 4" cone to move farther and more precisely—turning energy into impactful, controlled bass instead of wasted vibration. That means you’ll get low-end depth and punchy mids that rival a 6.5" speaker, without the need for extra space.

Max Out the Sound with OPTIM™ Sync

Want to push the Alpine BRV-S40 even further? Pair it with the Alpine OPTIM8® DSP/Amplifier using OPTIM™ Sync Technology. This intelligent tuning system fine-tunes the output specifically for BassRev speakers. It enhances bass response, balances tone, and brings out details you didn’t know were hiding in your tracks. With OPTIM™ Sync active, the BRV-S40 delivers extended low-end performance and near-6.5" impact—all from a 4" driver.

Built for Clarity and Strength

These speakers aren’t just about volume—they’re about quality. The polypropylene + mica cone keeps sound tight and accurate, while the rubber HEDGE™ surround helps extend bass response. A ferrite magnet motor powers the woofer with consistency, and the polyester cloth-dome tweeter keeps highs clean and natural. Add in a gun-metal chemical coating for durability and a sleek look, and you’ve got a setup that’s built to perform and last.

Compact Fit, Big Upgrade

Even with all that performance, the Alpine BRV-S40 maintains an OEM-friendly, shallow-profile design, making it perfect for doors or dash locations where space is tight. Whether you’re upgrading a factory system or fine-tuning a custom setup, these speakers slide right in and elevate your everyday drive into a full-blown listening experience.

Tech Specs at a Glance

• Woofer Size: 4"
• Tweeter Size: 1" (Coaxial)
• Power Handling: 40W RMS / 120W Peak
• Frequency Response (BassRev ON): 67Hz – 20kHz
• Sensitivity: 84dB (1W/1m)
• Impedance: 4Ω
• Mounting Depth: 1-3/4"
• Cone Material: Polypropylene + Mica
• Surround Material: Rubber HEDGE™
• Magnet Material: Ferrite (woofer), Neodymium (tweeter)

Dynamic Sound That Travels With You

From rich vocals to tight, responsive bass, the Alpine BRV-S40 captures the energy of your favorite tracks and projects them into your car with bold precision. It’s proof that great sound doesn’t need massive speakers—just the right engineering and a passion for music done right.

FAQs

1. What makes the Alpine BRV-S40 different from other 4" speakers? The Alpine BRV-S40 stands out with its HEDGE™ surround design and BassRev™ tuning, which deliver deeper bass and fuller mids compared to typical 4" coaxial speakers.
2. Can the Alpine BRV-S40 work without the OPTIM8® DSP/Amplifier? Yes, it performs impressively on its own, but pairing it with OPTIM8® using OPTIM™ Sync unlocks even more low-end depth and clarity.
3. Is the BRV-S40 compatible with factory mounting locations? Absolutely. Its shallow-profile design makes it easy to fit into tight spaces like doors and dashboards without modification.
4. What materials are used in the Alpine BRV-S40 construction? It features a polypropylene and mica cone, a rubber HEDGE™ surround, a ferrite magnet for the woofer, and a neodymium magnet for the tweeter—built for precision and durability.
5. How does the BRV-S40 handle high volume levels? Thanks to its rigid cone materials and stable motor design, the BRV-S40 maintains clean, distortion-free sound even when you turn the volume up.