MB Quart FKB169 Formula 6×9 Inch Speakers(pair)
MB Quart FKB169 Formula 6×9 Inch Speakers(pair) - Image 2
MB Quart FKB169 Formula 6×9 Inch Speakers(pair) - Image 3

MB Quart FKB169 Formula 6×9 Inch Speakers(pair)

Starting bid: $1.00

Up for auction is a pair of Brand New MB Quart 6×9″ co-axial speakers.  If you need a pair of 6×9’s to complete your system get them here for a fraction of their retail price. These speakers are currently sold out on the MB Quart website!! This auction like all others starts at $1 with no reserve. As always, good luck, and happy bidding!!!

Item condition: New

Time left:

Auction ends: May 8, 2026 8:46 PM
Timezone: America/New_York

Estimated Shipping: $15.00 - $15.00
Non-Continental Estimate: $

*Estimated shipping varies based on customer distance from warehouse

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Description

MB Quart FKB169 Formula 6 x 9 inch 2-way coaxial car speakers with aluminum dome tweeters and Butyl rubber surrounds.

Type Speaker
Brand MB Quart
Series Formula
Category Mobile
Condition New
Color Black
Warranty 1 Year
Speaker RMS Power Handling (watts) 75
Speaker Peak Power Handling (watts) 150
Speaker Impedance (ohms) 4
Speaker Frequency Response 46Hz-20kHz
Speaker Sensitivity 88dB
Speaker Crossover Slope 1kHz + 3kHz 12dB
Speaker Mounting Diameter / Cut Out (in) 8.64 x 5.98
Speaker Outside Diameter (in) 10.35 x 7.20
Speaker Mounting Depth / Chassis Depth (in) 3.35
Speaker Size (in) 6 x 9
Tweeters Aluminum dome tweeters deliver great sound with increased reliability.
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.

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