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
Questions? We’ve Got Answers.
Helpful answers about product features, setup, and more
What material is the audio speakers made of?
The audio speakers is constructed from steel. This material choice supports everyday use while maintaining the structural integrity needed for the product’s intended applications.
How big is the audio speakers?
The audio speakers measures 3.69 x 3 x 5.39 inches (length x width x height). Use these measurements to confirm the product fits your intended setup before ordering.
Is there a warranty on the audio speakers?
Yes. The audio speakers is backed by 1-year manufacturer warranty. Coverage details and claim procedures are provided by the manufacturer; retain your order receipt as proof of purchase if you ever need to file a claim.
How do I clean and care for the audio speakers?
Wipe with a damp cloth and dry thoroughly to prevent rust. For powder-coated finishes, avoid abrasive cleaners that may scratch the coating. Regular light cleaning extends the lifespan of the audio speakers and keeps it looking and performing well over time.
What color is the audio speakers?
This audio speakers comes in black. The color provides a neutral finish that coordinates with a wide range of décor styles.
Who makes the audio speakers?
The audio speakers is made by MB Quart. MB Quart produces this item as part of its lineup, and product details such as specifications, included accessories, and warranty terms are set by the brand.
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