SM-21 Axemount Dual Microphone Mount for 57 and R121 - Dual Mic

In this review the SM-21 Axemount Dual Microphone Mount is judged as a focused solution for guitar cabinet mic setups where mounting two dynamic mics is desired. Designed to hold a pair of common stage and studio dynamics such as Shure SM57-style and Royer R121-style oriented ribbons, the mount's single biggest selling point is practical dual-mic positioning on a guitar cab without extra stands. The review finds it especially useful for engineers and gigging guitarists who want consistent, repeatable placement and quick setup and teardown.

Key Features

• Dual microphone mounting: Allows two mics to be positioned together on a guitar cabinet for blended tonal options without separate mic stands.
• Cabinet-friendly design: The mount keeps both microphones steady against the speaker baffle so placement stays consistent during performances.
• Works with common dynamics and ribbons: Accepts familiar 57-style and R121-style microphone bodies so users can pair instruments they already own.
• Quick setup and removal: Mounting and unmounting are straightforward, making stage changes and studio sessions faster.
• Durable construction: Built for regular use on cabinets where reliability and repeatable positioning matter.

Who It's For

The SM-21 is aimed at guitarists, live sound techs and recording engineers who want a compact, reliable way to mic a cabinet with two different microphone characters at once. It suits those who value fast rigging and consistent placement when switching cabinets or moving between studio and stage.

Those who should look elsewhere include users who need full multi-axis mic positioning or very fine incremental mic placement that a stand offers, and anyone requiring an all-in-one boom stand solution rather than a cabinet-mounted accessory.

Pros & Cons

Pros

• Keeps two microphones correctly aligned for blended tones without two stands.
• Accepts common mic types, making it versatile for different tonal pairings.
• Simple, fast to attach which supports quick stage changes and studio setups.

Cons

• Some customers have mixed feelings about value for money, finding it on the pricey side for a mount.

Specifications

Product	SM-21 Axemount Dual Microphone Mount
Primary use	Dual microphone mount for guitar cabinet
Compatible microphones	57-style dynamics and R121-style ribbons
Mount type	Cabinet-mounted dual mic holder
Designed for	Guitar cabinets and speaker baffles
Brand	Royer Labs

Our Verdict

The SM-21 Axemount Dual Microphone Mount is recommended for musicians and engineers who want a compact, reliable way to combine two microphone signals from a guitar cabinet. It excels at consistent placement and quick setup, making it a sensible buy when tonal blending or mic pairing is required, though budget-conscious buyers should weigh the cost versus the convenience.

Frequently Asked Questions

Can it hold two different mic types?
Yes, it is designed to accept 57-style dynamics and R121-style ribbons so users can pair different microphone characters.

Is it suitable for live stage use?
Yes, the mount is built for regular attachment to cabinets and supports quick setup and teardown for live applications.

Does it replace microphone stands?
No, it is an accessory for cabinet mounting and does not provide full stand-style multi-axis positioning; use a stand if extensive positional adjustments are needed.