Of course I'm new to this forum and to better equipment. I'll keep it brief. Started trying to improve on a 20 year old Technics 5.1 system. After buying a Polk PSW108 sub and a Sony SS CS8 center, I decided it was time to just get new everything. So, got a new receiver, Onkyo TX RZ820 and a pair of RTi A7's, price was good and seemed like it'd be enough. From reading, figured I'd need to get an amp...so here I am.\n\nWhile the sub, center and the ancient Yamaha NS a635a 3 way studio monitors I've always had as surround will get replaced...I'm wanting to try the amp first. So, checking the Emotiva XPA 2 GEN3 amp. Reads like I can add mods as I replace the rest of the system but still get better 2 channel music in the meantime. \n\nSo any opinions on how the Onkyo, RTi's and the Emotiva will work with each other? I mean, I'd hate to trial and error $1k.