MB Quart FKB110 Formula 4 inch 2-way coaxial car speakers with aluminum dome tweeters and Butyl rubber surrounds.
| Weight | 2.2 lbs |
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| Type | Speaker |
| Brand | MB Quart |
| Series | Formula |
| Category | Mobile |
| Condition | New |
| Color | Black |
| Warranty | 1 Year |
| Speaker RMS Power Handling (watts) | 40 |
| Speaker Peak Power Handling (watts) | 80 |
| Speaker Impedance (ohms) | 4 |
| Speaker Frequency Response | 55Hz-19kHz |
| Speaker Sensitivity | 88dB |
| Speaker Crossover Slope | 6kHz 12dB |
| Speaker Mounting Diameter / Cut Out (in) | 3.69 |
| Speaker Outside Diameter (in) | 5.39 |
| Speaker Mounting Depth / Chassis Depth (in) | 3.0 |
| Speaker Size (in) | 4 |
| Proposition 65 Notice | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Tweeters | Aluminum dome tweeters deliver great sound with increased reliability. |
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| Cone Material | Lightweight thermal-formed polypropylene cones enable faster midrange response. |
| Surround / Cone Coupling | Butyl rubber surrounds provide durability and deeper mid-bass impact. The cone/surround connection utilizes a high temp adhesive which assure the cone and surround do not separate in high power uses or extremes of weather. |
| Gasket | A textured ABS gasket assures a rigid linear seal to the mounting surface. |
| Voice Coil / Former Assembly | Pure Copper voice coil creates a strong magnetic field with a very thin extrusion. Kapton voice coil former is lightweight and efficiently dissipates heat. |
| Spider | Natural fiber allows flexibility while the infused epoxy gives strength during the manufacturing process. |
| Cooling System | Over-coil cooling system allows air exchange over the voice coil through the spider |
| Crossover | 6dB internal crossover integrated into the design to assure smooth midrange to tweeter frequency transitions. |
| Frame | Heavy gauge progressive-die stamped steel frames for ultimate rigidity. |
| Motor | Ferrite magnt motor creates a strong magnetic field while remaining small enough to fit nearly every application. |
| Connectors | Use spade connectors or solder direct for the best connection. Tinsel Leads: Highly conductive while remaining flexible during high power applications. |
View/Download  (835.6 KB) | MB Quart Formula Speakers (FKB/FSB) Quick Start Guide (Rev2) |
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