The SCU250 Boundary Microphone from Bogen Communications provides low-visibility and maximum audio pickup in conferences, stage applications and anywhere a surface microphone is necessary. The cardioid polar pattern minimizes off-axis noise and feedback while suppressing surface noise. The wide frequency response is well suited for capturing both instruments and vocals. The non-glare, heavy copper enclosure features mounting screws at the base for hanging. A 26′ (7.9m) long cable terminates to a standard XLR connection and 9 to 52V phantom power is required.
Microphones are transducers, or energy converters, which sense acoustic energy (sound waves) and convert them into electrical energy signals. There are two common methods for microphones to do this: 1) the electromagnetic technique used in dynamic type microphones, and 2) the electrostatic technique used in electret condenser type microphones. Dynamic Dynamic microphones consist of a coil of wire attached to a diaphragm that sits in a magnetic field that is created by a small magnet. When sound waves cause the diaphragm to vibrate, the motion of the coil within the magnetic field creates electrical signals that can be amplified or recorded.
These types of microphones produce a smooth, extended response, and provide good linearity. Their output level is high enough to work directly with most microphone inputs and have an excellent signal-to-noise ratio. They are rugged, reliable, and do not require batteries or external power supplies to operate.