Be cautious of any Canadian made speaker. Most of them are made as tested in the nation research ce ters anicocic chamber they sound good if you build your room into a chamber as well if not you have a ear bleeding bright system that sounds awful. The trashcan kid tweeters they put in most of them along with tubby bass. Remember when you look at speakers if it says made in Canada it's just another cheap Canadian speaker. Paradigm may have got better but I had there top speaker years ago and that was the start of my first real system. I still likely have blood stain on the floor from the blood that poured our of my ears. I have not bother to listen to a pair again ad I don't even need to hear a pair again. Remember another of people build speakers but there are very few good ones. Also don't forget horn speakers sound good at ballparks usually bright a d or enough room. Volume for everything to integrate well between the drivers. You do have a large volume room but I would hesitate on a horn speaker as well. On wire if you are a bit handy my recommendation for wire would be furutech there products are very good performers and cheap at the level the play at.
https://www.partsconnexion.com/wire-cable-non-terminated.html
Look at the top and second from the top wires in each category.