Shure SM7dB Dynamic Vocal Microphone

The SM7dB is a cardioid dynamic microphone with a Shure-designed built-in preamp. This preamp provides up to +28 dB of low-noise, flat, transparent gain - ideal for lower-output interfaces and simplified audio chains. Delivers warm and smooth audio for vocal and studio applications. Preamp bypass switch, adjustable bass roll-off and presence boost, electromagnetic hum shielding, internal shock mounting, and external windscreen ensure clear and consistent audio reproduction. Features • Built-in active preamp providing either +18dB or +28dB of extra gain delivers levels suitable for any interface • Flat, wide-range frequency response for exceptionally clean and natural reproduction of both music and speech • Preamp bypass switch to revert to original SM7B performance • Bass roll-off and mid-range emphasis (presence boost) EQ switch controls • Superior rejection of electromagnetic hum, optimized for shielding against broadband interference emitted by computer monitors • Internal "air suspension" shock isolation virtually eliminates mechanical noise transmission • Highly effective pop filter eliminates need for any add-on protection against explosive breath sounds, even for close-up vocals or narration • Yoke mounting with captive stand nut for easy mounting and dismounting provides precise control of microphone position • Classic cardioid polar pattern, uniform with frequency and symmetrical about axis, to provide maximum rejection and minimum coloration of off-axis sound • Rugged construction and excellent cartridge protection for outstanding reliability Specifications Type: Dynamic (moving coil) Polar Pattern: Cardioid Frequency Response: 50 Hz to 20 kHz Output Impendance: 150 Ω in Bypass Mode, 27 Ω in Preamp Mode Polarity relative to Pin 3: Positive pressure on diaphragm produces positive voltage on Pin 2 Net Weight: 837 g (1.875 lbs) Housing: Black enamel aluminum and steel case with black foam windscreen Sensitivity (at 1 kHz, open circuit voltage) [1] 1 Pa=94 dB SPL: • -59 dBV/Pa[1] (1.12 mV) Flat Response Bypass Mode • -41 dBV/Pa[1] (1.12 mV) Flat Response +18 Preamp Mode • -31 dBV/Pa[1] (1.12 mV) Flat Response +28 Preamp Mode