The CAD ST-100R is a superior low noise, electret condenser cardioid surface-mounted boundary microphone. The ST-100RR features an advanced transformerless design, and is self-contained to eliminate the need for mounting any external boxes. The cardioid pickup pattern minimizes annoying feedback when used close to sound reinforcement speakers and monitors, while reducing the pickup of unwanted off axis sounds.

The boundary mic’s die-cast zinc base and double-layer perforated steel screen construction makes this microphone extremely rugged. The CAD ST-100R can also be permanently mounted on most flat surfaces with the supplied wood screws. The CAD boundary mic comes with 30 feet of high quality microphone cable that has a miniature 3-pin connector on the microphone end and a standard professional XLR type connector on the opposite end. The ST-100R will operate with any equipment that supplies standard 9-52 volt phantom voltage.