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authorized dealer for Boston Acoustics S75 4x6 2-way Car Speakers

Boston Acoustics S75 4"x6" 2-way Car Speakers

Item #: 74857 Availability: DISCONTINUED
Mfg Part No.: S75 Condition: Brand New

Free 2-Year Warranty


Boston Acoustic's S series speakers let you enjoy clear, natural sound, even with a low-powered system. And with a wide variety of sizes, you'll find a set for most commonly-sized speaker openings.

The Boston S75 4"x6" speaker features a 3/4" tweeter with a built-in cooling system for long term reliability and excellent power handling. A contoured tweeter plane guides high-frequency output to create a larger listening "sweet spot," while Boston's Amplitude Modification Device (AMD™) reduces harshness in the upper mids for clear, detailed sound.

The sturdy woofer cone teams up with a durable butyl rubber surround to produce tight, clean bass with minimal distortion. You'll hear a smooth blend between the woofer and tweeter, thanks to the built-in crossover. Grilles are not included — factory grilles are appropriate for most installations.


  • Boston Acoustics S-75 4"x6" 2-Way Coaxial Speakers
  • Power Handling:
    • Peak: 160 watts per pair / 80 watts each
    • RMS: 70 watts per pair / 35 watts each
  • Type S3 3/4" Soft Dome Tweeter
  • Neodymium Tweeter Magnet
  • Integrated Crosover
  • Copolymer Woofer Cone
  • Butyl Rubber Surround
  • 4 Ohm Impedance
  • Sensitivity: 92 dB
  • Frequency Response: 70 - 20000 Hz
  • Top Mount Depth: 1-13/16"
  • Mounting Hardware, Terminated Wire and Butt Connectors Included

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