I expect to make quite a few changes as we go along, and our screen size could very well wind up smaller as well. Our basement theater was originally going to be my audio room; I am a two-channel audiophile and was building a dedicated music room when the family voted (?) to convert it to a HT. As such, we have framing and soffit plans, but the rest is basically TBD
as we go along.
We did, just for kicks, pick up the seats, Coastar Pavillions. Two curved rows of three in red. Having the seats 'in hand' let us do the rest of the layout in actual measurements, such as designing the rear riser and front stage, etc.
I also purchased one of each speaker, again, to take actual measurements from. The Klipsch KLs are bigger than I thought and likely cannot be built into our front wall. We are currently researching inwalls for the front.
I purchased a JL F113 sub, which also is too deep to be concealed in our front wall, however I ran this unit in our upstairs audio room and was so impressed with its performance, that it absolutely has to stay, even if the wall has to be re-designed to accommodate it.
Every day we do something.....some days more than others, but it slowly adds up to progress. Just gotta keep building...