Not to dismiss RR’s speaker system as I have not heard them in person, I believe I had a similar speaker type in the Polk RTI bookshelf’s. I had to slim down my system when we lived in a small condo many years ago. The RTIs sounded wonderful mated with a receiver. However, I’m not certain I would be inclined to hear actual amplifier differences. Much like our built in ceiling speakers in our kitchen. They sound great, but not resolving enough to hear no differences.
I hear that ELAC makes wonderful smaller speaker systems that have really high quality sound.