The S4T is a compact, versatile speaker featuring unique driver technologies to produce the highest sound quality in the most durable and reliable loudspeakers available. Precise sound reproduction is achieved with mid/bass drivers employing MDT and MLS technologies for superior sound and long-term durability. The highfrequency driver is a 1” titanium diaphragm which perfectly complements the metal-alloy LF driver. A built-in 16W transformer makes it compatible with 70V sound systems. The S4T speaker can switch between 70V or low-impedance systems by using a power tap selection switch. Spiderless technology (MLS) and advanced materials deliver out-of-the-box performance year after year.