I have not heard the SLI 80, but had a Rocket 88 in a similar sized room. I used and still have Proac Response 2 speakers. I like the sound and found that the Proac speakers worked well with the CARY amp.
If you need to place speakers close to the rear wall I suggest front ported or sealed speakers. I had difficulty with rear ported speakers.
Best of luck in your search.
If you need to place speakers close to the rear wall I suggest front ported or sealed speakers. I had difficulty with rear ported speakers.
Best of luck in your search.