Open Box: This product has been opened for quality control or showcase, but it is in brand new condition. Full warranty applies.

The SM7dB is the modern evolution of the legendary SM7B, featuring a custom Shure-designed built-in active preamplifier that provides up to +28 dB of clean gain. This eliminates the need for external gain boosters like the Cloudlifter, making the SM7dB work effortlessly with any XLR interface while preserving the iconic SM7 sound character. A bypass switch reverts the microphone to original SM7B passive performance.

Built-In Preamp

• Gain settings: +18 dB, +28 dB, or Bypass (original SM7B mode)
• Preamp noise floor: -130 dBV equivalent input noise (A-weighted)
• Power: 48V phantom power required when preamp is engaged; no power needed in bypass mode
• Output impedance: 27 ohms (preamp active) / 150 ohms (bypass)

Sound and Shielding

The same flat, wide-range frequency response as the SM7B, preserved identically at all gain settings. Bass rolloff and mid-range emphasis (presence boost) switches provide tone shaping. Advanced electromagnetic shielding eliminates broadband hum, and the internal air-suspension shock mount isolates against mechanical vibration.

Specifications

• Type: Dynamic (moving coil) with active preamp
• Polar pattern: Cardioid
• Frequency response: 50 Hz to 20,000 Hz
• Sensitivity (bypass): -59 dBV/Pa (1.12 mV)
• Sensitivity (+18 dB): -41 dBV/Pa (8.91 mV)
• Sensitivity (+28 dB): -31 dBV/Pa (28.2 mV)
• Connector: 3-pin XLR
• Phantom power: 48V DC (4.5 mA max) when preamp active
• Dimensions: 198.1 x 149.9 x 96.5 mm (7.8 x 5.9 x 3.8 in)
• Weight: 837 g (1 lb 13.8 oz)

In the Box

• Shure SM7dB microphone with integrated yoke mount
• Close-talk windscreen
• 3/8" thread adapter