Overview

The Shure SM86 is a cardioid condenser vocal microphone designed for professional live performance. It pairs a small-diaphragm condenser capsule with a rugged handheld body, incorporating a built-in three-point shock mount and a two-stage pop filter. It targets performers who prefer condenser clarity on stage where dynamic microphones often dominate.

Scientific Validity

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Manufacturer specifications report a 50Hz–18kHz frequency response with a presence rise in the 2–5kHz region, maximum SPL handling of 147dB (at 1% THD, 1kHz), self-noise of 23dB A-weighted, S/N of 71dB at 94dB SPL, and dynamic range of 124dB [1]. Independent lab measurements suitable for meta-analysis were not located at review time; therefore, these values are treated as manufacturer specs pending third-party verification. The 18kHz upper limit falls short of full 20kHz coverage, and missing figures for IMD/crosstalk constrain a holistic assessment.

Technology Level

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The SM86 uses proven small-diaphragm condenser topology with a standard cardioid pattern, integrated shock mounting, and dual-layer pop filtering for stage practicality. Phantom power (11–52V DC) is required per the spec [1]. Implementation meets contemporary expectations for handheld condensers without notable advances beyond established practice.

Cost-Performance

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Current market price is 209 USD for SM86 [2][3]. Audio-Technica AT2010 is a handheld cardioid condenser with extended 40Hz–20kHz response and a 16mm low-mass diaphragm (official) at 139 USD [4][5]. While SM86 offers higher max SPL (147dB vs 136dB), both deliver professional live vocal capability; AT2010’s measured-spec parity on core user axes (pattern, bandwidth) justifies using it as the cheapest equal-or-better comparator.
CP calculation: 139 USD ÷ 209 USD = 0.665 → 0.7 after rounding [2][4][5].

Reliability & Support

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Wired Shure microphones generally carry a 2-year limited warranty, with established global service pathways including factory repair programs [6][7]. The SM86’s metal construction and shock mounting are appropriate for touring use. No firmware applies. Overall support/warranty is industry-average; thus the neutral score.

Rationality of Design Philosophy

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Shure’s approach—stage-ready ruggedization around a condenser capsule—addresses a real use-case (condenser clarity on loud stages) without speculative claims. Choices emphasize reliability and intelligibility but do not push measured transparency boundaries beyond typical handheld condensers.

Advice

If you need condenser articulation on stage and can supply stable phantom power, SM86 remains a sensible pick. Budget-conscious buyers should check AT2010 at 139 USD, which offers comparable functionality at a lower price [4][5]. If maximal robustness and simplicity are priorities, a dynamic like SM58 may be preferable. Verify your mixer/interface provides compliant phantom power before purchase.

References

[1] Shure, “SM86 User Guide,” official specs and conditions (max SPL at 1% THD/1kHz; self-noise A-wt; S/N at 94dB SPL). https://www.bhphotovideo.com/lit_files/89577.pdf (accessed 2025-08).
[2] B&H Photo, “Shure SM86 Cardioid Condenser Vocal Microphone,” current US market price. https://www.bhphotovideo.com/c/product/68153-REG/Shure_SM86_SM_86_Cardioid_Condenser_Vocal.html (accessed 2025-08).
[3] Shure, “SM86 – Product Page.” https://www.shure.com/en-US/products/microphones/sm86 (accessed 2025-08).
[4] Sweetwater, “Audio-Technica AT2010 Cardioid Condenser Handheld Microphone,” current US market price. https://www.sweetwater.com/store/detail/AT2010–audio-technica-at2010-cardioid-condenser-handheld-microphone (accessed 2025-08).
[5] Audio-Technica, “AT2010 Datasheet (EN),” official diaphragm and FR specs. https://docs.audio-technica.com/eu/AT2010%20Datasheet%20%28EN%29.pdf (accessed 2025-08).
[6] Shure, “Warranty Information.” https://www.shure.com/en-us/legal/warranty-information (accessed 2025-08).
[7] Shure, “Service and Repair Process.” https://www.shure.com/en-us/support/service-repair (accessed 2025-08).

(2025.8.25)