Shure Beta 57A Supercardioid Instrument Microphone


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    BETA 57A - Overview

    The refined edition of the ever popular SM57 offers extended low bass and high frequency response impressive ruggedness with superior shock mounting. Best suited for live or studio sound reproduction of acoustic and electric instruments especially drums, horns and percussion. A must for every band or orchestra.

    What's the Difference Between Shure SM57 and Beta 57A?
    You'd be hard-pressed to find a band that hasn't used the celebrated SM57 at least somewhere in their career. To this day, the SM57 remains number one for guitar amps and snares - both live and in the studio. Less well known, the Beta 57A is also heard on many classic vocal recordings - despite being intended for instruments.

    Therefore, with such an impressive history, you might be left wondering what applications would call for its closely related cousin, the Beta 57A. In this post, we'll cover the facts to shed some light on the key differences.

    Is the Beta 57A Better?
    The simple answer is - it depends. However, there are some key differences which could aid your decision as to which one is right for you....
    Polar Pattern
    Just like the Beta58, the Beta57 has a super-cardioid polar pattern in place of the 57's cardioid design. A cardioid microphone pattern will reject best from the back while a super-cardioid microphone will reject better from the sides. The supercardioid polar pattern also has the added advantage of being more directional and therefore less susceptible to feedback when stage monitors are positioned correctly.
    The Grille
    Perhaps the most immediately obvious difference - at least from a visual perspective - is the grille design. The SM57 does not have a full protective grille - but there's a good reason for this. In the absence of a protective ball shaped grille (like the one found on a 58) engineers are able to make full use of the proximity effect. Think about it: a typical ball grille adds distance from the capsule ; remove it, however, and you're able to position the mic much closer, and therefore add greater proximity effect to the signal.

    The great thing about the Beta57, is that it offers the best of both worlds; it features a unique grille shape, with the full protection of a ball grill while still facilitating use of the proximity effect. Beta microphone grilles are also much harder in comparison to their SM counterparts, which makes them more difficult to dent. Perfect for touring on the road!
    Frequency Response
    The Beta57 has an extended frequency response for brighter highs and more low frequencies. It is described as having a tailored frequency response for drums, guitars, vocals, and horns. Basically, if you prefer more sparkle on your vocal or more low-end chunk on your guitar cab - you'll likely prefer the Beta57.
    Thanks to the neodymium magnet, the Beta57 has an increased output level. This is great for getting the best possible signal into the desk and improving signal-to-noise ratio.
    Handling Noise
    Both microphones feature Shure's unique pneumatic shock mount system. The Beta edition, however, is an advanced version - further reducing transmission of mechanical noise and vibration.

    The Bottom Line!
    In summary, the Beta57 is undoubtedly an upgrade for many applications, but it should not be regarded as an upgrade for all applications. For example, if your guitar amp has a particularly glassy tone, you might not necessarily want to emphasize this with an extended frequency response. Additionally, if you capture more bottom-end on a vocal or instrument, the added oomph won't necessarily work within the context of a full mix. It's important to consider what you want the final result to be; and by referring to the key differences in this post you should now be armed to make a more informed decision.

    • Features:

      • 50-16,000 Hz frequency range
      • 2 year warranty
      • Cable not included
    • Specifications:

      • Transducer Type: Dynamic
      • Polar Pattern: Supercardioid
      • Frequency Range From (Hz): 50
      • Frequency Range To (kHz): 16
      • Sensitivity dBV/Pa: -51.00
      • Sensitivity mvpa: 2.80
      • Impedance (Ohm): 150
      • Switchable Low Cut: no
      • Output Connectors: 3 Pin XLR
      • Attenuation PAD: no
      • Interchangeable Capsule: no
    • Item Includes:

      • 1 - A25D Stand Adapter
      • 1 - 95A2050 5/8" to 3/8" (Euro) Thread Adapter
      • 1 - 26A21 Storage Bag
    • GTIN:


    BETA 57A - Required Accessories

      BETA 57A - Recommended Accessories

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