Shure SM86 Review: A Versatile Condenser Microphone for Stage and Studio

ByObeydul Haque

The Shure SM86 has established itself as a go-to condenser microphone for vocalists who need reliability and performance in both live and studio settings. Sitting in the middle of Shure’s vocal microphone lineup, the SM86 offers a compelling alternative to both the ubiquitous SM58 dynamic microphone and the higher-end KSM series condensers. In this comprehensive review, we’ll examine the SM86’s design, sound quality, versatility, and value to determine if it deserves a place in your microphone arsenal.

Design and Build Quality

Physical Characteristics

The SM86 follows Shure’s classic handheld microphone design philosophy with a few notable differences from the SM58. Weighing in at approximately 9.9 ounces (281g), it’s slightly heavier than the SM58 but still comfortable for extended use. The microphone measures 7.2 inches (183mm) in length with a diameter of 2 inches (51mm) at its widest point.

The microphone features Shure’s characteristic durable metal construction with a dark gray finish that’s resistant to scuffs and scratches. The steel mesh grille, while visually similar to the SM58, has been designed specifically to protect the more sensitive condenser capsule while minimizing interference with sound quality.

Internal Components

As a condenser microphone, the SM86 differs significantly from Shure’s dynamic offerings in its internal design. It utilizes a cardioid condenser capsule with a low-mass diaphragm for enhanced frequency response and transient detail. The microphone requires phantom power (48V), which is standard for condenser microphones.

The SM86 includes a three-stage pop filter built into the grille assembly to reduce plosives and breath noise. This is complemented by an effective internal shock mount system that isolates the capsule from handling noise and mechanical vibration – a crucial feature for a handheld condenser microphone intended for stage use.

Technical Specifications

  • Type: Electret Condenser
  • Polar Pattern: Cardioid
  • Frequency Response: 50Hz to 18kHz
  • Sensitivity: -50.5 dBV/Pa (2.99 mV)
  • Maximum SPL: 147 dB
  • Signal-to-Noise Ratio: 72 dB
  • Phantom Power Requirement: 11-52V DC
  • Output Impedance: 150 ohms
  • Connector: 3-pin XLR

Sound Quality

Frequency Response

The SM86 exhibits a tailored frequency response curve that enhances vocal clarity and presence. The microphone delivers a smooth, flat response in the low and mid frequencies with a noticeable presence boost in the 3-8kHz range. This creates a bright, articulate sound that helps vocals cut through dense mixes without becoming harsh or sibilant.

Low-frequency response is controlled and natural, with a gentle roll-off below 80Hz that helps minimize proximity effect when the microphone is used close to the source. This makes the SM86 particularly effective for vocalists who vary their microphone technique during performance.

Transient Response

One of the most significant advantages the SM86 has over dynamic microphones like the SM58 is its superior transient response. The lightweight condenser diaphragm captures fast attacks and subtle details with remarkable accuracy, revealing nuances in vocal performances that might be lost with a dynamic microphone.

This transient detail is particularly beneficial for vocalists with expressive styles featuring quick dynamic changes, soft articulations, or breathy passages. The SM86 captures these elements faithfully while maintaining excellent intelligibility.

Noise Performance

The SM86 offers a good signal-to-noise ratio of 72 dB, which is respectable for a handheld condenser in this price range. While not as quiet as studio-focused condensers, it performs very well in typical stage environments with elevated ambient noise levels.

Self-noise is low enough to be negligible in most applications, and the microphone’s excellent off-axis rejection helps maintain a clean signal when used in complex stage setups with multiple sound sources.

Performance Characteristics

Live Performance

The SM86 truly shines in live performance applications. Its condenser capsule provides the detail and sensitivity typically associated with studio microphones while incorporating robust features needed for stage use. The cardioid polar pattern offers excellent rejection of off-axis sound, helping to isolate the vocalist from background noise and reduce the risk of feedback.

The built-in shock mount is particularly effective, minimizing handling noise to a degree that’s impressive for a condenser microphone. This allows performers to move naturally without generating distracting thumps or rumbles.

The microphone’s ability to handle high sound pressure levels (up to 147 dB) ensures clean reproduction of even the most powerful vocal performances. This headroom, combined with the microphone’s detailed high-frequency response, results in dynamic performances with excellent articulation and presence.

Studio Applications

While primarily designed for live use, the SM86 is versatile enough to serve admirably in studio settings as well. Its tailored frequency response works particularly well for pop, rock, and R&B vocals, providing a modern, present sound that often requires minimal EQ adjustment.

The SM86 may not offer the ultra-flat response or extreme detail of dedicated studio condensers, but its character and reliability make it a practical choice for project studios or mobile recording setups. Its resistance to environmental factors like humidity also makes it suitable for home studios without perfect climate control.

Versatility

Beyond vocal applications, the SM86 proves surprisingly versatile as an instrument microphone. It performs exceptionally well on acoustic guitar, capturing both the crisp attack of the strings and the warm resonance of the body. It also works effectively on percussion instruments like congas, bongos, and shakers, where its transient response captures the attack and detail necessary for authentic reproduction.

Practical Considerations

Durability and Reliability

Shure has a well-earned reputation for building microphones that can withstand extreme conditions, and the SM86 continues this tradition despite its more sensitive condenser design. The hardened steel mesh grille protects the capsule from physical impacts while the robust internal shock mount adds another layer of protection.

The microphone’s resistance to humidity and temperature variations makes it suitable for touring and outdoor performances. While it doesn’t claim the same near-indestructibility as the SM58, the SM86 is significantly more rugged than many competing condenser microphones.

Accessories and Extras

The SM86 comes with a basic but effective accessories package including:

  • A zippered carrying case
  • A microphone clip
  • A 5/8″ to 3/8″ thread adapter
  • A user guide

For optimal performance, additional accessories worth considering include a dedicated pop filter for studio use and a windscreen for outdoor performances. The Shure A58WS windscreen designed for the SM58 is compatible with the SM86 and effectively reduces wind noise without significantly affecting sound quality.

Value Proposition

With a street price typically between $179-199, the SM86 occupies a middle ground between basic dynamic microphones and high-end condenser models. This pricing positions it as an excellent upgrade path for performers who have outgrown the limitations of dynamic microphones but aren’t ready to invest in premium condenser options.

Considering its versatility, durability, and sound quality, the SM86 represents excellent value for working musicians and small studios. Its ability to serve multiple functions—from main vocal microphone to instrument mic—further enhances its cost-effectiveness.

Comparison to Competitors

Shure SM58 vs. SM86

The most obvious comparison is with Shure’s own legendary SM58. While the SM58 is more affordable and slightly more durable, the SM86 offers significant sonic improvements:

  • Greater detail and clarity, particularly in the high frequencies
  • Enhanced transient response for more articulate performances
  • Wider frequency response, particularly in the high end
  • More modern, polished sound character

For vocalists who have been using an SM58 but want more definition and presence without changing their microphone technique, the SM86 represents a logical step up.

Shure Beta 87A vs. SM86

The Beta 87A is Shure’s premium handheld condenser, positioned above the SM86 in their lineup. The main differences include:

  • The Beta 87A has a supercardioid pattern for even greater feedback rejection
  • The Beta 87A offers slightly extended high-frequency response
  • The Beta 87A features a more pronounced presence peak
  • The SM86 has a more natural, less colored sound signature

The choice between these models often comes down to stage conditions and personal preference, with the SM86 offering a more versatile, natural sound while the Beta 87A excels in challenging acoustic environments.

Other Competitors

In its price range, the SM86 competes with microphones like the Sennheiser e865, the Audio-Technica AE5400, and the Rode S1. Each offers slightly different tonal characteristics, with the SM86 generally providing the most balanced combination of durability, sound quality, and value.

Pros and Cons

Pros

  • Excellent balance of detail and warmth for vocal applications
  • Robust construction unusual for a condenser microphone
  • Effective handling noise rejection
  • Versatile enough for both stage and studio use
  • Well-controlled proximity effect
  • Great value for the price point

Cons

  • Requires phantom power, limiting use with some basic PA systems
  • Not as durable as dynamic alternatives like the SM58
  • Slightly heavier than comparable dynamic microphones
  • More susceptible to humidity and environmental factors than dynamics

Conclusion

The Shure SM86 successfully bridges the gap between studio-quality sound and stage-ready durability. For performers who have been limited by the capabilities of dynamic microphones but concerned about the fragility of condensers, the SM86 offers an ideal compromise.

Its tailored frequency response, excellent transient detail, and reliable construction make it suitable for a wide range of vocal styles across multiple genres. While primarily designed for live performance, its studio capabilities extend its value proposition significantly.

For vocalists looking to upgrade their sound without breaking the bank, the SM86 deserves serious consideration. It carries forward Shure’s legacy of building reliable, great-sounding microphones that meet the real-world needs of performing musicians.

Final Verdict: 4.5/5 – A versatile, durable condenser microphone that delivers professional sound quality at a reasonable price point.

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