I ordered my 8W and they fit perfect. Purchasing these J-Hooks fit perfectly on the squat rack and only INCREASES the safety of your weightlifting exercises. The internal springs are nice, not a lot of creaking or metal bending noise. Also theyre lightweight and, in some sizes, a bargain price. I prefer the Ally Plus for the bass they can deliver and with the mids/highs sounding so good i dont prefer the hair better of the sonys because of their LACK of bass. I will post updates if anything happens but so far so good! It took me just over an hour to build it with a manual screw driver (if you have a power drill, goes much faster) but instructions were clear and easy to follow. Endlich ein erschwinglicher Schaffell-Hausschuh, der all meine Anforderungen erfüllt:1. Im going to put two blocks of wood under those corners as support, since we dont move these around. This is a great multi product charger!