You are married to high efficiency speakers if you plan on getting a 8 watt SET or even a PP 300b won’t be enough for a lot of speakers.
I’ m driving a pair of Forte IV in a small to medium size room and it sounds great but push it too far and it falls apart. It will play moderately loud. I don’t listen loud so for me I’m using probably less than a watt. These amps are not for people that like to play music loud, that is not what they are all about.