The ball socket on one of the upper legs cracked, making the joint so loose that the ball would just fall out.
I tried repairing it with glue but as soon as i put the ball in, it would crack again.
I didn't notice anything wrong with it till about 2 or 3 months after buying it, so i wrapped tape around the leg, put it on my shelf and kind of forgot about it till yesterday when I saw the other one on the discount trolley
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Soundwave superior. All others inferior!