Kef q950 or Public. Imagine x. X2t

im not as smart as you as far as understanding the details.     i have the onkoyo txnr809     and txnr696(havnt opened) bought cas it was hard to get and top rated but now wonder if i messed up.       im watching for the q950 sale i think its happening soon their due to release a newer version    your right they been out    if i read rigjht since 2017     were im lost on is say i were to get 1 of the 2 next receivers do i need an amp on top of it to get the q950 to run great       i was looking at onkyo rz50 *i think thats the model its the one everyones buying 2nd it comes out      or do i go with the denon x3700 or x4700    which one is better and if i go that good do i need a preamp to get them to work great and if i do which one?     i was looking at emotiva but are they even decent      some people write that their veery basic     im looking for quality might be my last buy of $ substance     saving for a house and cant keep buying on side hobbies      wod want to buy more important stuff after so this may be my last fun buy for me      i want to do it right       i also keep looking at other speakers but ive always been a kef fan but never owned yet     when i heard them at a show i was like wow i love these i will own a paiur one day      ive owned 4 dif lines of klipsch speakers      2nd i bought my last set months later they relesed a newer version i was so upset n the new set is so much better      but think ill stick w q950 and then after that what do i do.     i have a svs pb2000 ill stick with      hvnt opened but i own it        this receiver    preamp thing is bugging mr i want to get it right         any advice or help?        u ever watch robinson on youtube?