Im selling the bottom half of my Gemini WRX-843 Portable Array System. Works great. 8 sub.The upper masts got damaged and I already have multiple systems so this is up for sale.Any of you who deal with Gemini know that they wont sell replacement components so you have to buycomplete systems or, in this case, find used parts.This is compatible with the WRX-843 or the PA300BT towers