K&M 21105 Counter Weight — Boom Arm Balancing Accessory
21105 Overview
The K-M 21105 Counter Weight is a purpose-built accessory for audio professionals who work with heavy microphones on boom stands. Unbalanced boom arms create instability and stand creep, particularly with large-diaphragm condensers, shotgun microphones, and other high-mass mics. This counter weight mounts to the rear of the boom to restore balance and maintain precise mic positioning. It is suited for studio engineers, broadcast facilities, houses of worship, and any installation where boom arm stability is critical.
The 21105 is compatible with all one-piece K&M boom arms featuring a 3/8″ thread connector or 15 mm tube diameter, and its straightforward mounting design allows for quick installation without tools.
Key Features
- Heavy Microphone Compatibility — designed specifically to counterbalance the load of heavy microphones on boom arms, reducing stand creep and improving positional stability
- Broad K&M Boom Arm Compatibility — fits all one-piece K&M boom arms equipped with a 3/8″ thread connector or 15 mm tube diameter
- Easy Mounting — installs quickly onto the boom arm without complex tools or hardware, minimizing setup time
- Black Finish — low-profile black finish suits stage, studio, and broadcast environments where visual discretion is preferred
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