K&M 21431 Mini Boom Arm — Compact Overhead Microphone Positioning
21431 Overview
The K&M 21431 Mini Boom Arm is a short, moveable microphone boom arm built for professional overhead applications and general-purpose mic positioning. Constructed from steel with a one-piece 290 mm boom arm design, it delivers reliable rigidity in a compact form factor. Dual threaded connectors accommodate both 3/8″ and 5/8″ standards, ensuring compatibility across a broad range of stands and mounting hardware. This boom arm is well suited for studio engineers, broadcast facilities, houses of worship, and live sound technicians who require a low-profile overhead positioning solution.
The wing nut clamping mechanism allows for quick angle adjustments without tools, keeping workflow efficient during setup and repositioning.
Key Features
- One-Piece Boom Design — Single-section 290 mm arm provides a rigid, stable platform for overhead microphone placement
- Dual Threaded Connectors — Accepts both 3/8″ and 5/8″ threads for broad compatibility with professional stands and mounting hardware
- Wing Nut Clamping — Tool-free angle adjustment for fast, repeatable positioning during setup
- Steel Construction — Durable all-steel build suited for repeated use in demanding professional environments
- Overhead Application Optimized — Compact 290 mm length is specifically suited for overhead mic positioning where a full-size boom arm is impractical
- Lightweight Form Factor — 0.31 kg total weight minimizes load on the host stand
Connectivity & I/O
- 3/8″ threaded connector
- 5/8″ threaded connector
Technical Specifications
| Boom Arm Design | One-piece |
| Boom Arm Length | 290 mm |
| Threaded Connectors | 3/8″ and 5/8″ |
| Clamping Mechanism | Wing nut |
| Material | Steel |
| Weight | 0.31 kg |
| Finish | Black |
| EAN | 4016842818587 |
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