K&M 21339 - Black - Coupling Bar for Speaker and Subwoofer - 35mm Thread and M20 - Worm Gear - Steel - Adjustable Height

Adjustable coupling bar with worm gear for speaker/subwoofer systems. The integrated handle facilitates precise elevation of the speaker while maintaining consistent stability via the gear. Compatible with 35mm and M20 bases, this coupling tube seamlessly fits common configurations without additional adapters. The black steel construction offers mechanical strength suitable for stage use and minimizes unwanted vibrations between the sub and speaker. Height adjustment range: 94 - 150.5 cm to position the speaker at your desired height according to the room and sound projection. The operating handle allows progressive control for safe speaker installation, with a lock on the gear ensuring reliable height during operation. Its compact size facilitates transport and integration into flight cases. The black finish blends visually with stage environments. Designed for repeated installations, this system combines fast setup with millimeter-precise adjustments, ideal for temporary setups as well as mobile performances.