Looking for some guidance or ideas the best way to utilize all of my products. I have a beam (Gen 1) mounted under my tv in living room, 2 era 100 mounted on either side of couch used as surround. I was just gifted an era 300. Best way to use them together, certain way of grouping/zone setup? I was thinking maybe just use era 300 as a line in for my turntable for the time being until upgrade beam or get another 300 to swap the 100 surround. Ideas?