200 inch transparent screen. Sounds like your room is large and your are spending some money. I would recommend for LCR some large JBL pro cinema speakers. I don't have a specific model in mind, but some like dual 12in or 15 in with very large format horn. That will make your movies come alive.
On the other hand, if you are putting together a 2 channel music system, with the highest level of resolution, high defined 3 dimensional sound stage and stereo imaging, then a pair of NX Oticas with matching subs would be very good.