Atlantic Technology ICTS-6HT-S 6.5" 2-Way  Home Theater In- Ceiling LCR Speaker (Single, White) In-ceiling LCR speaker with 6.5" polypropylene cone woofer Aimable, soft-dome 1" tweeter Baffle-mounted tone controls Anti-diffraction trim ring ensures great off-axis response Boundary compensation adjusts sound for nearness to walls