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Hi everyone. I’m new to this forum and was hoping for some advice or guidance. I’m buying a Denon AVR-X4500H and using it to power a 5.1 Klipsch system (504C for the center channel, 8000F for front L & R, and 5000F for surrounds). I will likely be adding 2 5000F towers for the rear surrounds as well to take it to a 7.1 setup. My room is about 11 x 21, but I only utilize about an 11 x 11 square for the system. It’s an open floor plan so the right side is open, but unused. It's also opened at the back. I’m trying to build this system with an eye towards a more dedicated space in the future and so while I know the Denon can handle well beyond 7.1 (especially in a small space), I’m planning on eventually adding 4 Atmos speakers and perhaps another sub to get to 7.2.4. So my question is: if I use a 3-channel amp to power the front stage, will the Denon be enough to power four surrounds (all towers) and four Atmos overheads while still having enough juice to do whatever other processing it needs with TV and such (honestly not sure if that requires any wattage from the avr)? All the Klipsch speakers I’m using are very efficient but I’m trying to find out if I move into a better, perhaps larger space, if I’ll have enough power without having to add more amplifiers (which I guess I could do down the road). Thanks so much for your thoughts and suggestions. I’m grateful! Carl