Sonus faber lumin v or sonetto iii

The musical fidelity m6si is great amplifier that are driving my dynaudio special forty’s.

I was able to hear a direct comparison of Lumina V vs Sonetto VIII at a dealer.  Importantly, both speakers were played on the same exact system; all we did was swap out the speakers. The sound of Lumina V was so close to the Sonetto VIII that I would be hard pressed to pay twice the money for the Sonetto. One thing I noticed about the Lumina V is how much bass impact they get out of them with kick drums and the like. They were being powered by a Michi X5 integrated amp.

What was the size of the room. My room size is 20 x17.

I'd say something like 12 x 16 feet.

How would describe there sound signature.