The SYSTEM 17URS provides flat frequency response and excellent sound in a 2' x 2', ceiling tile replacement enclosure. It has a high durability, powder coated and perforated steel baffle, with a lightweight speaker assembly that includes an 8?, foam edge speaker with a 10 oz. magnet and a 4 Watt, 25/70V transformer with rotary tap selector. By providing excellent sound quality, visual appeal and typical Quam reliability, the SYSTEM 17URS is designed for a wide range of demanding applications. The SYSTEM 17URS is UL Listed, and provides four (4) seismic tie-off points to comply with local codes in most jurisdictions. The fully assembled, 2' x 2' enclosure of the SYSTEM 17URS can be installed in a ceiling tile grid in about one minute, which saves installation labor and enhances your profits. When you need a high quality, great sounding speaker that installs very quickly, make Quam your choice for speakers.