Hi ScottY

Yes the QLX-4 mic boom fits. Also available it the QLX-5 music stand and some other gizmo's I don't think you'll need.

Definitely try this QL-610. I'll bet you start forgetting to bring your Monolith. Not all X stands are created equal. The 610, unless you are really strong armed should not move.

Actually the Monolith was quite sturdy, I always like to test things to their limit, so, ya, I could make it move a bit. Mostly sideways. The weight really was a concern for me though. My joints have healed pretty well after whatever it is that I did to them, maybe it was carrying around that Peavey KB300, the bulkiest 75 pounds I have ever seen. Sold that bad boy for $300 and the guy loved it.

If you decide to get the 610 I'd love to hear your opinion on it.

Best

Scott Langholff