The CMS 801sub delivers low frequency extension into applications that require a combination of premium sonic quality and output level for music and speech reinforcement, as well as long-term operating reliability and ease-of-installation. The 200 mm (8") driver, with long throw multi fibre paper pulp cone, and a 2nd order 160 Hz passive crossover, are mounted in a vented, injection moulded, paintable front baffle manufactured from UV/weather resistant UL94 V-0 ABS material. Spring loaded self-aligning clamps make for quick and easy installation, and each device is supplied with two tile support rails and one C-ring included in the package. A plaster (mud) ring is available as an optional accessory. Two models variants are available: CMS 801sub BM (blind mount) and CMS 801sub PI (pre-install) - with a steel back can available as an optional accessory for the PI version. The BM model is equipped with a low insertion loss 60 W line transformer mounted within the back can. This is easily configurable to various settings via front baffle mounted rotary tapping switch.