The Installer Series by MartinLogan is a line of affordable, high-performance, ultra-low-profile custom installation in-ceiling and in-wall speakers.  Featuring titanium dome tweeters and mineral-filled polypropylene drivers, each model comes with a remarkably robust mounting-lock system and paintable micro-perf, bezel-free grilles for a nearly invisible installation.  Two all-weather models extended usage to high humidity areas.  Pre-installation brackets are available for all models and square grilles are available for select in-ceiling models.
 
Designed with a special baffle, the IC6-HT in-ceiling speaker features a woofer and titanium dome tweeter mounted at a 30° angle, making IC6-HT ideal for large multi-channel installations where in-ceiling speakers.  Sound can be easily directed toward the listening area by rotating the speaker assembly before moving the mounting-locks into place.