Shop All

Log in to your account

Sign up for an account

When you become a partner with Petra, you get more than access to great products to resale... You will receive the following benefits!

  • Same Day Shipping
  • Lowest Price Guaranteed
  • No Minimum Order
  • Free Freight on Qualifed Orders


First Responders take 5% off when you pick up your purchase in uniform
1 - 1 of 1
  • 1
  • MB Quart® FKB110

    Formula Series 2-Way Coaxial Speakers (4")

    • 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
    • 4"
    • 80W max/40W RMS
    • Freq resp: 55Hz–19kHz
    • Mounting dia: 3.69"
    • Outside dia: 5.39"
    • Mounting depth: 3"
    • Pair
    • Part No. 332188
    • SKU MBQFKB110
    • Vendor SKU FKB110
    • Retail Price$34.99
1 - 1 of 1
  • 1