K&M 21338

This thing is... weird. Yes, it has the crank system and that's good, but overall it's just surprisingly awful. It wobbles around in the subwoofer hole and the speaker on top of it feels very unbabalanced. Why K&M has such a product under their name is very difficult to grasp. I recommend changing it for the threaded version, at least this way you will have your top speakers nicely set. Update: this crappy thing has some mechanism inside. It will sing along it's rattling song with your subwoofer low frequencies, driving you insane while you think your speakers are all broken. What a waste.