K&M 21140 | Telescopic Boom Arm with 3/8" Thread & Silent Adjustment

Adjustable Telescoping Microphone Boom Arm

The K&M 21140 is a durable, two-piece telescopic boom arm designed for precise microphone positioning in studio, stage, and broadcast settings. With smooth, silent adjustments and a solid steel construction, it’s ideal for performers and engineers seeking stability and flexibility.

K&M 21140 Competitive Differences

• Two-piece telescopic boom design for extended reach
• Adjustable length from 16.7" to 28.5" (425 to 725 mm)
• Wing nut clamping for silent, scratch-free adjustment
• Includes locking washer and ergonomic plastic grip
• 3/8" threaded connector for compatibility with most mic clips and accessories
• Lightweight steel construction for durability without added bulk

K&M 21140 Description

The K&M 21140 boom arm offers professional-grade adjustability and convenience in a compact and lightweight package. Its two-piece telescopic design extends from 16.7" to 28.5" (425 to 725 mm), allowing precise microphone placement for a wide range of applications—from vocal performances to overhead drum miking. Constructed from durable steel and finished in black, this boom arm features a smooth wing nut clamping mechanism for silent, scratch-free adjustments during performances or recordings. A plastic grip and locking washer ensure secure handling and easy setup. Ideal for use in combination with mic stands that feature a 3/8" thread, the 21140 provides the reliable functionality and build quality König & Meyer is known for.

21140 Features

• 2-piece telescoping boom arm design
• Locking washer for secure attachment
• Plastic grip for easy handling
• Wing nut clamping for smooth and silent adjustment
• Black steel construction for strength and longevity

21140 Specifications

• Boom Arm Length: Adjustable from 16.7" to 28.5" (425 to 725 mm)
• Threaded Connector: 3/8"
• Weight: 1.28 lb (0.58 kg)
• Material: Steel
• Clamping Type: Wing nut
• Color: Black
• UPC: 4016842209880