Tempest is the world’s leading manufacturer of large format indoor projector enclosures noise attenuation in presentation suites, digital cinema, and theatre and concert venues noise-sensitive indoor space. Tacit models are projector- for projectors over 20,000 lumens, and have been tested approved for each of the projectors covered, up to 45,000 lumens. Tacit uses remote fans located in an adjacent space or insulated ceiling void to assure best-in-class noise attenuation, generally better than 25dB. Tacit has a lightweight but extremely strong aluminum frame, with threaded (M12-1.75) holes at six points for easy installation.