MB Quart Formula 4-Inch 2-Way Coaxial Car Audio Speakers Pair, Black, 2 Pack

Experience precise, high-quality sound with the MB Quart Formula FKB110 4-Inch 2-Way Coaxial Car Speakers, engineered for balanced performance and lasting reliability. This set includes 2 pairs (4 total) of full-range speakers designed to deliver clear highs, rich midrange, and impactful bass in any vehicle audio system. Each speaker handles 40 watts RMS and 80 watts peak power at 4 ohms, producing smooth, distortion-free playback with 88 dB sensitivity and a frequency response of 55 Hz to 19 kHz.

The aluminum dome tweeters provide crisp, detailed highs with excellent reliability, while the lightweight thermal-formed polypropylene cones ensure fast, accurate midrange response. Butyl rubber surrounds enhance durability and bass impact, and the high-temperature adhesive cone-to-surround connection prevents separation during high-output use. Inside, the pure copper voice coil and Kapton former efficiently manage heat, supported by an over-coil cooling system that promotes airflow through the spider for consistent performance.

Built on a heavy-gauge stamped steel frame, each speaker maintains rigidity and reduces distortion. A ferrite magnet motor generates strong magnetic force in a compact design, while the 12 dB internal crossover provides seamless transitions between the midrange and tweeter. With a mounting diameter of 3.69 inches, outside diameter of 5.39 inches, and depth of 3 inches, installation is simple using spade connectors or direct soldering. The FKB110 Series delivers professional-level sound and durability in a compact, vehicle-ready design.

• Includes 2 pairs of 4-inch 2-way coaxial car speakers designed for balanced full-range sound
• Handles 40 watts RMS and 80 watts peak power at 4 ohms for clear, distortion-free playback
• Aluminum dome tweeters deliver precise, bright highs with excellent reliability and control
• Butyl rubber surrounds enhance durability and provide deeper, more defined mid-bass response
• Lightweight thermal-formed polypropylene cones ensure fast, accurate midrange performance
• High-temperature adhesive cone-to-surround bond prevents separation during high-power use
• Pure copper voice coil and Kapton former maintain strong magnetic control and dissipate heat
• Built-in 12 dB crossover ensures smooth transitions between midrange and tweeter frequencies
• Over-coil cooling system allows consistent airflow to prevent thermal buildup at high volumes
• Color: Black
• Dimensions (L x W x H): 3.69 x 3 x 5.39 inches
• Manufacturer warranty: 1-year warranty
• Quantity: 4

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