he SM7dB is a dynamic vocal microphone with built-in preamp providing up to +28 dB of low-noise, flat, transparent gain ideal for almost any interface and simplified audio chains. Selectable preamp boost of either +18dB or +28dB of extra gain Flat, wide-range frequency response for exceptionally clean and natural reproduction of both music and speech Preamp bypass switch deactivates the preamp to revert to original SM7B performance Bass roll-off and mid-range emphasis (presence boost) EQ contro