Heavy-Duty Precision Mounting with the K&M 21376 Easy Lock Distance Rod
The K&M 21376 Easy Lock Distance Rod is a professional-grade sub-to-top mounting solution engineered for maximum stability, safety, and speed. Featuring a steel M20 threaded base and K&M’s patented expanding mandrel system, it provides a vibration-free connection between powered subwoofers and full-range tops—ideal for both mobile and installed sound systems.
The Easy Lock system uses internal plastic splints to eliminate rattling and movement under load, delivering secure alignment even during high-SPL playback. Height adjustability from 35.4" to 57.8" gives you flexible positioning for everything from low-ceiling banquet halls to elevated festival decks. The ergonomic locking handle allows for single-handed height control without tools or slippage.
Real-World Applications and Sound Roles:
- Mounting powered tops over subwoofers in DJ setups
- Line-array spacing or hybrid pole-mount PA configurations
- Corporate AV, rental, and production environments
- Touring systems needing fast, safe speaker deployment
How to Deploy in the Field
Mounting the K&M 21376 is fast and secure thanks to its dual-locking design. Simply insert the threaded M20 base into a compatible subwoofer like the BASSBOSS DJ18S-MK3, SSP118-MK3, or similar, and hand-tighten until firmly seated. The fixed thread ensures zero wobble during playback or transport.
Raise your full-range top onto the 35mm pole mount and adjust the height using the Easy Lock clamp—a single twist is all it takes to lock it into place. The ergonomic grip ensures quick deployment even in dark or crowded conditions. Ideal for stacking tops like the DiaMon-MK3 or DV12-MK3 directly above powered subs without compromising safety or alignment.
Why Choose the K&M 21376 from AVMaxx
At AVMaxx, we don’t just sell speaker poles—we spec them based on real-world deployment needs. The K&M 21376 isn’t just compatible with M20 subwoofers—it’s what we recommend and use with BASSBOSS and DAS Audio systems where safe, fast stacking is mission-critical. Whether you're building out a mobile rig, installing a permanent club system, or handling multi-venue rentals, we’ve already field-tested the 21376 for you.
From reinforced flight cases to controller-ready bundles, we’ll make sure your gear integrates cleanly and safely—every time. And with deep inventory on poles, cables, and rigging accessories, AVMaxx makes system building simple from day one.
Frequently Asked Questions about the K&M 21376
Will the K&M 21376 work with all subwoofers?
The 21376 is designed for subwoofers with an M20 threaded pole mount. It will not work with subwoofers that only have standard unthreaded sockets.
What is the maximum speaker weight it can support?
The K&M 21376 supports speakers up to 77 lbs (35 kg), making it fully compatible with most powered tops, including BASSBOSS DiaMon-MK3 and DV12-MK3 models.
How does the Easy Lock system work?
The Easy Lock clamp allows for one-handed height adjustment and secure locking without tools—ideal for fast setup and teardown on tight timelines.
Can I use it for permanent installations?
Yes. The threaded design and rigid steel construction make it a great option for permanent installs where safety and stability are critical.
Is this included in AVMaxx speaker bundles?
Absolutely. The K&M 21376 is the standard speaker pole in many of our powered system bundles due to its strength, reliability, and fast deployment.
If you want your powered top to sit rock-solid above any M20-compatible sub, the K&M 21376 gives you safety, speed, and pro-level reliability in one tool-free solution.
