Rebec BMW100 COAX Rear Door Speaker

OEM Rear Speaker Upgrade for BMW Vehicles

The Rebec BMW100 COAX is a dedicated 4-inch coaxial speaker engineered specifically for BMW rear door applications. Designed as a direct replacement for factory rear speakers, the BMW100 COAX delivers improved clarity, enhanced musical detail, and a more immersive listening experience while maintaining OEM fitment and factory appearance.

As part of the Rebec BMW Series, the BMW100 COAX is developed to complement the front-stage speakers and underseat woofers, helping create a more balanced and enjoyable in-car audio environment.

Sound Performance

• Improved rear sound field reproduction
• Enhanced clarity and detail
• Balanced full-range performance
• Better tonal consistency than factory speakers
• Smooth integration with front-stage components
• Natural and comfortable listening experience

The BMW100 COAX helps fill the cabin with more complete and cohesive sound, improving the listening experience for both front and rear passengers.

Key Features

OEM-Specific BMW Fitment

The BMW100 COAX is engineered for direct installation into BMW factory rear door speaker locations, preserving the vehicle’s original appearance and functionality.

Coaxial Full-Range Design

The integrated coaxial architecture combines midrange and high-frequency reproduction within a single driver, allowing the BMW100 COAX to deliver balanced full-range performance from the rear door position.

Glass Fiber Cone Construction

The glass fiber cone provides excellent rigidity and control, helping maintain natural tonal balance and accurate musical reproduction across a wide range of music genres.

Rear-Fill Optimization

The BMW100 COAX is tuned to support and complement the front-stage system rather than overpower it, creating a more spacious and immersive sound environment throughout the vehicle cabin.

Performance Highlights

Compared with factory rear speakers, the BMW100 COAX delivers improved clarity, cleaner vocals, and better overall balance. Its full-range coaxial design allows rear passengers to enjoy a more complete listening experience while contributing to the overall depth and ambience of the sound system.

When combined with the BMW200 underseat woofer, BMW100 or BMW120 front midrange speakers, and BMW28 tweeters, the BMW100 COAX helps create a fully integrated BMW audio upgrade solution.

Part of the Rebec BMW Series Ecosystem

The BMW100 COAX is designed to work seamlessly with other Rebec BMW Series products, maintaining tonal consistency and balanced performance throughout the vehicle.

For BMW owners seeking a complete OEM-style speaker upgrade, the BMW100 COAX provides an effective solution for improving rear sound field performance without compromising factory integration.

Application

The Rebec BMW100 COAX is designed for BMW vehicles equipped with 4-inch class rear door speakers and is ideal for OEM audio upgrades, DSP-enhanced systems, and complete Rebec BMW Series installations.

Summary

The Rebec BMW100 COAX is a dedicated OEM replacement rear door speaker for BMW vehicles, combining direct factory fitment, balanced full-range performance, improved clarity, and enhanced rear sound field reproduction. It provides a seamless upgrade path for BMW owners seeking a more immersive and refined in-car listening experience while preserving OEM appearance and functionality.