I need some help choosing the right speakers for my system.

I'm looking for a pair of bookshelf speakers for my Myryad Z140/Z112 system.
I was wondering if the JMR Duet was a good choice.

It's for a small room < 20 square meters.

The music I listen to is: voices, piano, cello… ancient music, baroque music, jazz…
I don't like punchy basses and listen music at a moderate volume.

Is there a better choice or do you think the Duets should fit my needs?

Thank you for your help,