Jeco92

Hello all, I live in France and use Klipsch speakers for a long time, more than 20 years starting with first THX small system (It still used by one of my son). In my homecinema room, I have : - Palladium P37 for right and left - Palladium P27C for center - Palladium P27S for surrounds - R-15M for rears I will update my room by adding 4 dolby Atmos speakers. As my ceiling is not flat (it is like wave), I cannot install classic klipsch thx speakers like PRO-7502-L (due to 20° angle direction of sound with this speaker). So I plan to use PRO-7800-L-THX or PRO-6502-L-THX instead. I can install these two ones with a good orientation for listening. My preference is PRO-7800-L-THX but I cannot install it vertically as shown on klipsch web site. So my questions are : - can I install the PRO-7800-L-THX horizontally with woofer on right on on left side (depending on ceiling location, med/tweeter always near center) ? - do I need to modify it in anyway like turning 90° left or right the med/tweeter ? If PRO-7800-L-THX cannot be used in my case, I will use the PRO-6502-L-THX which can be installed horizontally. Hope you can help me on this. Best regards from France.