Concertino and Opera Mezzos

Do the SF Concertinos and the Opera Mezzos have the same sound? I heard the SFs, but not the Mezzos.
yes, but the mezzo's are a little more open and dynamic.
When speakers are more dynamic, what is the trade off?
i don't think(in this case)there is any trade off. the mezzo would be more like the sonus faber concerto...more 'weight' than the concertino...a sound more resembling some of the older sonus faber models, like the signum