Shure Beta 57 A

Shure Beta 57A – supercardioid dynamic instrument microphone, built for miking drums, guitar amplifiers, and brass and woodwind instruments. A neodymium magnet raises sensitivity and output level by roughly 4 dB over the classic SM57, while keeping a strong signal-to-noise ratio when miking quieter acoustic sources. The 50 Hz to 16,000 Hz frequency response is shaped with a presence boost and a gentle dip around 6 kHz, curbing sibilance and harshness when working on snare, cymbals, or brass instruments. A maximum SPL rating of 140 dB lets the mic sit right up against very high sound-pressure sources without risking capsule overload.

Supercardioid isolation against loud sources onstage

A uniform supercardioid pattern, symmetrical about the microphone axis across the entire frequency range, provides strong gain-before-feedback headroom and effective isolation from neighboring sound sources on a crowded stage. Aiming the null at a snare drum's hi-hat cuts bleed from that source, and on a guitar cabinet it reduces crosstalk from adjacent amps in the same tracking session, without reaching for extra noise gates at the mixing stage.

A pneumatic shock mount that cuts handling noise

An advanced internal pneumatic shock-mount system decouples the capsule from the housing, limiting the transfer of mechanical vibration from a drum-rim clamp or mic clip straight into the transducer. A built-in pop filter further tames air blasts during close miking of wind instruments, and the hardened mesh grille along with the enamel-coated die-cast housing hold up to daily load-in and load-out on tour.

KEY FEATURES

• Supercardioid pattern, uniform across the full frequency range
• Neodymium magnet for higher sensitivity and better signal-to-noise ratio
• Maximum SPL up to 140 dB
• Internal pneumatic shock-mount system
• Built-in pop filter
• Hardened mesh grille and enamel-coated die-cast housing

TECHNICAL SPECIFICATIONS

• Transducer type: dynamic (moving coil)
• Polar pattern: supercardioid
• Frequency response: 50 Hz - 16,000 Hz
• Sensitivity (1 kHz, open circuit voltage): -51 dBV/Pa (2.8 mV)
• Impedance: rated 150 Ω (actual 290 Ω)
• Maximum SPL: 140 dB
• Connector: XLR (3-pin)
• Net weight: approximately 275 g
• Included: microphone clip and carrying pouch