MB Quart FKB113 Formula Series 2-Way Coaxial Speakers (5.25")


The ideal balance of a high end car audio system requires the ideal mix of speaker tone, deep bass impact and clean undistorted power. The MB Quart Formula Series of speakers provide the base for a great sounding, impeccable system. These 5-1/4 in. Formula Series 2-Way Coaxial Speakers have aluminum dome tweeters with polypropylene cone speakers. Peak handling power on these 5-1/4 in. car speakers is 90 watts; RMS is 45 watts.

  • WIDESHERE creates a large "sweet spot" for all listeners, even from the smallest speakers
  • Aluminum dome tweeters deliver high output, extended frequency response & natural music reproduction
  • Butyl rubber surrounds provide durability & deeper mid-bass impact
  • Textured ABS gasket assures a rigid linear seal to the mounting surface
  • Pure copper voice coil creates a strong magnetic field with a very thin extrusion
  • Kapton voice coil former is lightweight & efficiently dissipates heat
  • Natural fiber allows flexibility while the infused epoxy gives strength during the manufacturing process
  • Over-coil cooling system allows air exchange over the voice coil through the spider
  • Heavy gauge progressive-die stamped steel frames for ultimate rigidity
  • 5.25"
  • 90W max/45W RMS
  • Freq resp: 60Hz-20kHz
  • Mounting dia: 4.48"
  • Outside dia: 6.26"
  • Mounting depth: 2"
  • Pair

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