K&M 21459

Pros: cheap, the clamp works, I still cannot believe it. Whenever I put my heavy speakers on it I keep my breath. But have they failed? No. Amazing.
Cons: don't take unneccesary risks, don't overload them. Use only lighter speakers.
Verdict: they work. But you will be keeping your breath. I don't recommend them for gigging. Use them in rehearsal room for example.

OK, but a bit disappointed by the plastic components. That said, they have actually performed pretty well. Also, it means they are light weight which, when you are lugging a pa around in the car, is very important. They are very steady. the bag split along the zip stitching after a little while which, again was a little disappointing, however what I did like about the bag was the flap to separate the stands so one did not scratch or damage the other.

I use those with 17kg speakers (Turbosound iQ10) and even with these relatively light speakers the stands are a bit wobbly. No way I would use them for anything heavier or in a live setting. They are light, but all the locks and the top connector for legs are cheap plastic which would not stand the rigors of traveling. In fact that top tripod connector has already broke at the rivet holding one of the legs. Ok for a permanent stay in a rehearsal room.