The SM48 unidirectional dynamic microphone is a great performance microphone. It maintains a true cardioid pattern throughout its frequency range, ensuring high gain before feedback and rejection of off-axis sound.The tailored frequency response is ideal for lead vocals, backup vocals, and spoken word applications. A presence rise brightens mid-range performance, and a low frequency roll off controls proximity effect.The SM48 includes a shock-mounted cartridge, a steel mesh grille, and an integral “pop” filter.Type DynamicFrequency Response 55 to 14,000 HzPolar Pattern CardioidImpedance Microphone rating impedance is 150 Ω (270 Ω actual) for connection to microphone inputs rated at 19 to 300 ΩOutput Level (at 1,000 Hz) Open circuit voltage: *–57.5 dBV/Pa (1.3 mV) *1 Pa = 94 dB SPLPolarity Positive pressure on diaphragm produces positive voltage on pin 2 with respect to pin 3Connector Three-pin professional audio (XLR), male Weight 370 g Dimensions 166 mm L x 54.2 mm W