Floor standing speaker suggestions for McIntosh MXA70 (MHA150)

I am looking to pair a nice set of small floor standing speakers with my McIntosh MXA70 amplifier (50W/channel into 8ohms) for a small room (10’ x 20’).  I am running a McIntosh MCT80 transport and a McIntosh MB50 streamer as my sources.  I recently purchased some Dali Oberon 5’s and am enamored with their “sweet” sound, however, I am wondering if there’s a step-up to slightly more detail without increasing the speaker size/footprint much.  I am currently auditioning the new Martin Logan Motion F10 and like the detail but it can appear to be a bit bright at times compared to the “sweeter” more “airy”  sound of the Dalis.  Given the Martin Logan’s are a 4Ohm speaker, I’m wondering if the McIntosh 50 Watt amp is enough to truly drive them?  I listen to acoustic, jazz, classical, rock and country and really appreciate female vocals. I would appreciate any recommendations/guidance you provide.  As a frame of reference, I auditioned Sonus Fabers and B&Ws aswell but both were a bit forward/bright to my ear. Thanks again for any guidance you can provide.