Shure SM87A Review: The Definitive Review for Studio and Stage Professionals

In the ever-evolving landscape of professional audio equipment, few companies have maintained the consistent reputation for quality and reliability that Shure has established over its decades of operation. Among their extensive catalog of microphones, the SM87A stands as a somewhat overlooked gem that deserves closer examination. This comprehensive review explores the technical specifications, practical applications, and overall performance of the Shure SM87A, a condenser microphone that bridges the gap between studio precision and live performance durability.

Technical Overview

The Shure SM87A is a premium condenser vocal microphone designed with both studio and live performance environments in mind. As a successor to the original SM87, this updated model represents Shure’s commitment to refining and perfecting their professional product line.

Key Specifications:

• Type: Electret Condenser
• Polar Pattern: Supercardioid
• Frequency Response: 50Hz to 18kHz
• Sensitivity: -52.5 dBV/Pa (2.4 mV)
• Impedance: 150 ohms
• Maximum SPL: 140.5 dB
• Self-noise: 23.5 dB SPL (A-weighted)
• Weight: 207g (7.3 oz)
• Dimensions: 49mm (1.9 in.) diameter; 187mm (7.4 in.) length

The microphone requires phantom power (11-52V DC) for operation, which is standard for condenser microphones in this class.

Design and Build Quality

The SM87A follows Shure’s tradition of constructing robust, tour-ready equipment. While many condenser microphones are notoriously fragile, the SM87A breaks the mold with its hardened steel mesh grille and die-cast metal body that can withstand the rigors of constant touring and handling.

The microphone has a classic, understated aesthetic with a matte black finish that doesn’t draw unnecessary attention when used on stage. The craftsmanship is immediately apparent when holding the microphone – it has a substantial weight and solid feel that instills confidence in its durability.

A standout design feature is the multi-stage acoustic filter and shock mount system. This internal architecture reduces both handling noise and the proximity effect – that tendency for bass frequencies to become exaggerated when a microphone is used close to the source. This consideration makes the SM87A significantly more forgiving than many other condenser microphones in live applications.

Sound Character and Performance

The SM87A excels in capturing vocal performances with exceptional clarity and detail. Its frequency response has been carefully tailored for vocal applications, with a presence boost in the 3-10kHz range that adds brilliance and intelligibility without becoming harsh.

The supercardioid polar pattern provides excellent rejection of off-axis sound, which serves two crucial purposes: it helps isolate the vocalist from background instruments when used live, and it reduces room reflections when recording in less-than-ideal acoustic environments.

One of the most impressive attributes of the SM87A is its ability to maintain consistent tonal character regardless of the angle at which the sound reaches the capsule. Many directional microphones suffer from severe tonal coloration when the source moves off-axis, but the SM87A retains remarkable fidelity even when the vocalist moves around, making it particularly forgiving for dynamic performers.

The microphone handles transients exceptionally well, capturing the initial attack of consonants with precision while maintaining a smooth response on sustained notes. This balance between articulation and warmth makes it versatile across various vocal styles.

Live Performance Application

In live settings, the SM87A truly shines. Its supercardioid pattern provides superior gain-before-feedback compared to many competitor models, allowing for higher monitor levels before unwanted feedback occurs.

The built-in three-point shock mount effectively isolates the capsule from mechanical vibration, reducing handling noise and stage rumble that might otherwise be transmitted through the microphone stand. This isolation system works in conjunction with the pop filter to minimize plosives (“p” and “b” sounds) and wind noise.

Another notable feature for live application is the microphone’s ability to reject electromagnetic hum – a common issue in venues with substandard wiring or lighting systems in close proximity to audio equipment. The SM87A’s excellent RF rejection keeps these unwanted artifacts out of the signal path.

When tested against industry standards like the Neumann KMS105 or AKG C535EB, the SM87A holds its own remarkably well, offering comparable sound quality with arguably better durability at a lower price point.

Studio Performance

While primarily marketed as a live vocal microphone, the SM87A performs admirably in studio settings as well. Its controlled proximity effect and well-balanced frequency response make it suitable for recording vocals across multiple genres.

The microphone responds well to equalization, allowing engineers to shape the sound precisely without introducing unpleasant artifacts. Its natural presence boost means less high-frequency EQ is typically needed to achieve vocal clarity in a mix.

The SM87A’s off-axis rejection also proves valuable in studio environments that lack ideal acoustic treatment, as it minimizes the capture of room reflections. This characteristic can be particularly beneficial for home studios or project studios where acoustic considerations might be compromised.

When compared to dedicated studio condenser microphones in its price range, the SM87A may not offer the absolute lowest noise floor or the most extended high-frequency response. However, its versatility and robust construction make it an excellent choice for studios that require microphones to serve double-duty for both recording and live performances.

Specialized Applications

Beyond its intended use as a vocal microphone, the SM87A proves surprisingly versatile for capturing various acoustic instruments. Its balanced frequency response and transient handling make it suitable for:

• Acoustic guitar, particularly when positioned toward the neck to capture string detail
• Brass instruments, where its ability to handle high SPLs prevents distortion
• Piano, especially when a pair is used in a stereo configuration
• Drum overheads, where its directionality can help focus on specific elements of the kit

The microphone’s relatively low self-noise (for a live condenser) of 23.5 dB SPL means it can handle quieter sources reasonably well, though it may not be the first choice for extremely delicate or distant miking applications.

Comparison with Competitors

In its price category, the SM87A faces competition from several notable alternatives:

1. Shure Beta 87A: The SM87A’s sibling offers a slightly brighter sound signature and tighter super cardioid pattern, often preferred for particularly problematic stages but sometimes considered less natural sounding.
2. AKG C535EB: A popular alternative with a slightly more extended high-frequency response but generally considered more susceptible to handling noise.
3. Neumann KMS 105: A premium option with lower self-noise and more refined sound, but at a significantly higher price point and with greater fragility.
4. Audio-Technica AE5400: Offers similar performance characteristics with a slightly more pronounced midrange that some vocalists prefer for cutting through dense mixes.

The SM87A distinguishes itself in this competitive field through its balanced combination of sound quality, durability, and value. While it may not excel in any single category above all competitors, it offers perhaps the most well-rounded package for professionals who need reliability across varied applications.

Limitations

No microphone is without limitations, and the SM87A has several worth noting:

• The requirement for phantom power makes it less convenient in situations where such power might not be readily available.
• At 23.5 dB self-noise, it’s not the quietest condenser microphone available, which may be noticeable when recording very quiet sources or when applying significant gain in post-production.
• The supercardioid pattern, while excellent for isolation, requires proper technique – vocalists need to maintain a consistent position relative to the microphone for optimal results.
• Some users report that the microphone lacks the “air” or high-frequency extension found in more expensive studio condensers.

Value Proposition

With a street price typically ranging between $249-299, the SM87A represents a significant investment compared to entry-level microphones but offers excellent value relative to its performance and durability. For working professionals who require a microphone that can transition seamlessly between touring and recording environments, the SM87A justifies its cost through its versatility and reliability.

The microphone’s longevity should also factor into value considerations – many SM87A users report decades of trouble-free operation, effectively amortizing the initial investment over many years of professional use.

Conclusion

The Shure SM87A occupies a unique position in the professional microphone landscape. It successfully bridges the gap between studio-quality sound and road-worthy construction, making it an ideal choice for touring musicians, houses of worship, theater productions, and project studios alike.

While it may lack some of the refinement of dedicated studio microphones or the absolute bulletproof construction of dynamic microphones like its famous sibling, the SM58, the SM87A strikes a remarkable balance that few competitors can match. Its ability to deliver consistent, detailed vocal reproduction across a wide range of applications while withstanding the demands of professional use has earned it a devoted following among audio professionals.

For vocalists and sound engineers seeking a versatile, reliable condenser microphone that won’t require babying or constant replacement, the Shure SM87A remains an excellent choice that has stood the test of time. In an industry where trends come and go, the SM87A represents the kind of thoughtful engineering and practical design that never goes out of style.