Pioneer CST 6.5" In-Ceiling Speaker

  • Coherent Source Transducer (CST) Technology
  • 1.5" Aluminum Tweeter
  • 6.5" Mica-filled IMPP Woofer
  • 120 Watt Power Handling*
  • 5 Year Limited Warranty


Creating the ultimate home theater experience demands a level of performance that goes beyond the conventional.

That pursuit of perfection has always been a mission for our professional and Elite® lines, and the results of that pursuit can now be experienced with our Pioneer CST line as well.

With the immediate installation benefit of virtually disappearing into any environment, the quality of the sound that follows certainly makes its presence known.

And with Coherent Source Transducer (CST) driver technology offering an even wider “sweet spot” than competing pivoting driver designs, a more consistent and uniform auditory experience is now possible for any home theater.

The S-IC651-LR is designed for home theater and distributed audio applications, featuring our CST driver technology comprised of 6.5” mica-filled Injection Molded Polypropylene (IMPP) woofer and 1.5” aluminum tweeter. A thermal resetting protection circuit and treble and bass contour controls provide added installation flexibility.


All Architectural Loudspeakers are backed by a 5 year limited warranty. Details are provided on the Limited Warranty Sheet included with the product.