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Cutting Edge Electronics since 1982
phone 918-495-0586
Explore Tulsa
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6 1/2" Reference Standard In-Ceiling CST Speaker

Model # SIC691A

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Speaker Features

  • Coherent Source Transducer (CST) Technology
  • Three-Way Design
  • 1 3/16 Ceramic Graphite Tweeter
  • 5 1/2 Magnesium Midrange
  • 6 1/2" Aramid/Carbon Composite Shell Woofer
  • Laminated MDF Baffle
  • Treble Contour Control
  • Phase Control Design
  • Angled Configuration for Home Cinema
  • Designed to Integrate with Floor-Standing EX Models
  • Coherent Source Transducer (CST) driver technology ensures direct and reflected sounds arrive at the listening position with matched timbre, resulting in extremely smooth, coherent sound while simultaneously optimizing the issues of phase and off-axis frequency response. The result is a more accurate and wide-ranging sweet spot for home cinema and 2-channel audiences
  • Each model is constructed from hand-picked materials including a 1-3/16 ceramic graphite tweeter, 5-1/2 magnesium midrange, woven aramid fiber woofer and laminated MDF baffle which command no-compromise performance and faithful reproduction of the most demanding audio sources up to 100kHz
  • EX Series bass driver designs incorporate a cast chassis, large diameter voice coil, corrugated surround, and proprietary LDMC magnetic circuit all of which ensure stable, ultra linear movement with minimal distortion for accurate low frequency response
  • Enhanced tonal balance adjustments can be made via a treble contour control, which allow installation professionals to adjust high frequency output for superior customization options to better suit their client s preferences
  • Innovative angled in-ceiling design provides added installation flexibility for both front and surround channel applications, including a complete in-ceiling cinema configuration
  • Designed to complement our floor-standing models, this new line delivers a reference class in-wall experience that significantly excels in form, function and application flexibility
Specifications and design subject to change without notice. Speakers sold individually.
PIONEER, ELITE, and the Pioneer and Elite logos are registered trademarks of Pioneer Corporation.


  • Coherent Source Transducer (CST) Technology
  • 1 3/16 Ceramic Graphite Tweeter
  • 5 1/2 Magnesium Midrange
  • 6 1/2" Aramid/Carbon Composite Shell Woofer

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy, and expensive and you probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Questions or Comments?
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