High quality item, as adam hall has got me used to.. this has the same functioning caracteristics of the cromed model, but in an elegant and way less visible black colour. I have and use 2 pairs on a couple of custom midtops, painted all black, and they are perfect to match the style. After years of hard use, they have yet to fail or rattle when the speakers are playing heavy bass music. Best suitable for flight cases or tops, they would rattle a bit if mounted on big sized and high powered subwoofers.