FKB146

Compact High-Performance Audio for Factory Upgrades

Enhance your vehicle’s sound system with the MB Quart FKB146 Formula Series 4x6-Inch 2-Way Coaxial Speakers. Designed for compact factory speaker locations, these speakers deliver improved clarity, stronger output, and a more dynamic listening experience compared to stock audio systems. With 90 watts peak power handling and 45 watts RMS at 4 ohms, the FKB146 provides balanced performance for everyday driving.

The 2-way coaxial design integrates a woofer and tweeter into a single unit, ensuring efficient sound reproduction while simplifying installation. Ideal for drivers seeking a noticeable audio upgrade without extensive system modifications, these speakers bring MB Quart’s signature clarity and tonal balance to smaller factory speaker locations.

Engineered Materials for Clear and Balanced Sound

The MB Quart FKB146 Formula Series Speakers are built with carefully selected components to ensure reliable performance and accurate sound reproduction. The polypropylene cone woofer provides a lightweight yet rigid structure, allowing for controlled bass response and clear midrange output.

Paired with an aluminum dome tweeter, these speakers deliver crisp, detailed high frequencies that enhance vocals and instrument separation. With a sensitivity rating of 88dB, the FKB146 speakers are designed to perform efficiently even with modest amplifier power or factory head units.

This combination of materials ensures a clean, distortion-resistant sound signature suitable for a wide range of music styles.

Easy Installation with Reliable Formula Series Design

The MB Quart FKB146 4x6" Coaxial Speakers are designed for straightforward installation and compatibility with many factory speaker mounts. Their compact size makes them ideal for vehicles requiring 4x6-inch replacement speakers without modification.

Featuring a 4-ohm impedance rating, these speakers integrate easily with most car audio systems, whether powered by factory radios or aftermarket head units. The lightweight construction and simple wiring design make installation fast and efficient for both professionals and DIY installers.

As part of the MB Quart Formula Series, the FKB146 delivers dependable performance, improved sound quality, and a hassle-free upgrade path for smaller speaker locations.

Highlights

• 4x6-Inch 2-Way Coaxial Speaker Pair
• 90 Watts Peak Power Handling for improved audio output
• 45 Watts RMS Power @ 4 Ohms for stable performance
• Compact design ideal for factory speaker replacement
• Polypropylene Cone Woofer for controlled bass and mids
• Aluminum Dome Tweeter for crisp high-frequency detail
• 88dB Sensitivity for efficient sound output
• Designed for clean, distortion-free audio performance
• Formula Series engineered for balanced sound reproduction
• Easy installation for factory or aftermarket systems
• Lightweight construction for improved speaker responsiveness
• Suitable for daily driving and audio upgrades

Package Contains

• 1 Pair of MB Quart FKB146 4x6" 2-Way Coaxial Speakers
• Mounting Hardware Kit
• Speaker Wiring / Terminals (if included by manufacturer)
• Installation / User Manual (if included by manufacturer)
• Manufacturer Retail Packaging Box