I have been using Reference 3A MM De Capo i speakers with a 25 watt Blue Circle BC6 Class A hybrid amp and a BC3 Despina preamp in a relatively small room [16' x 12' x 8.5' ] with great results.
If you haven't already, you might want to also run this question by the folks on the forum at Blue Circle's web site.
If you haven't already, you might want to also run this question by the folks on the forum at Blue Circle's web site.