Edit: Disregard, I haven't heard that model. (Depending on which one you get, Tekton will be the loudest, but the Double Impact and Electra beam a ton so you will be working with a small sweet spot. If you value SPL above all else, go for it.)
Zu audio... There's a reason people make speakers with multiple drivers. Good luck with this one. Hopefully you like mids and not much else... and don't mind coloration.
Elac: Might be underpowered but I doubt it will have issues if the tiny RB42 doesn't bother you and distort.
Curious why these three were selected? An IN-8 V2 seems like it would perform better and Erin's Audio Corner has measurements if you care to compare them to a speaker you're familiar with.
Zu audio... There's a reason people make speakers with multiple drivers. Good luck with this one. Hopefully you like mids and not much else... and don't mind coloration.
Elac: Might be underpowered but I doubt it will have issues if the tiny RB42 doesn't bother you and distort.
Curious why these three were selected? An IN-8 V2 seems like it would perform better and Erin's Audio Corner has measurements if you care to compare them to a speaker you're familiar with.