AV receivers are not known for their amp sections. So if you are Happy with your speakers and you want to optimize the performance for once and for all, buy the correct amp or amps for the speakers just once and then update the processor as new formats come along. If you want to add more channels you can with out compromising your original amp or speakers. If you are still thinking about changing speakers or rooms then investing in the perfect amps may not be the best choice for you now. My amps are going to be 10 years old and I'm on my third MX series HT processor. I have skipped 7 different HT processors. I would have had to buy 10 different units to keep up with the Jones. As is, I bought 3 and could have survived with two. If I believed in the latest Atmos format and 4k video I guess I could purchase the 4th one. But 8k is right around the corner with another new sound format, so I will wait and see. I by- passed Quad, with SQ and QS, Dolby analog surround and early dolly digital, so surpassing Dolby Atmos is no big deal. I also bypassed Elcassette. 8 trks, 4 trks, tape cartridges. . But I did enjoy DAT, DBX, FM Radio with Dolby,. I kept my previous power amps over 35 years. I could have up graded once during that period but I was working and traveling a lot and didn't see the need. When I went into the Home theatre, I bought two extra small speakers amps. that I used for 5 years. Then I upgraded to two Seven channel amps. Having 7 two channel amps just wasn't logical, price effective or space conscious. Why 14 channels. Well I tri- amp the the left and right , bi-amp the center and rear s leaving 2 channels for the for the sides. I also have 8 more channels for remote speakers, and electro static headphones.. In case your wondering you need 10 db more sensitivity or power for out doors than you do for in doors. Ever heard of room gain, that's why.