Also prewire for any speakers you could want in the future (atmos). Trust me you will go that way sooner than you think. If you have the room and funds try to set up for a full size center. I love klipsch to but if i could do anything diffrent i would go with diy sound group 1099 or 1299 for theater.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F323688160301
appears to be anyway. Its not my listing i just figured it mite be a good deal for someone in that area
Any interest in some
me and a friend of mine are makeing some for some of the older klipsch refrence line that had breaking problems. They will be cnc mdf with black fabric.
rc-7,rb-5, and such
Yea i redid the cabs and rewired them. They work quite well. They dig to around 17hz and up to at least 120+. And dont require as much power as i have on tap to feed them
The ground i would think goes under one of the screw holes when you put the plate back in the box or the bolt rite behind it in the picture so that the transformer has a ground since its on rubber isolaters. The rubber isolaters you can get off of mcmastercar. Just measure there length and bolt size.