I have owned both the Concertinos and Concertos. I had such great results with the Concertinos I mistakenly upgraded to the Concertos just looking for a fuller sound. This ended up being a mistake. The Concertinos are truly a wonderful speaker and are capable of some real magic when properly paired. ( I was using an Electrocompaniet ECI-3 and a Sony XA7ES for my source via a Balanced Connection)
I ended up selling my Concertos and now own Grand Pianos and could not be more happy. They remind me more of the Concertinos but a much bigger version of them. As far as harsh and grainy, I have NEVER heard a Sonus Faber speaker sound that way. Must be a terrible match of equipment. The Concertinos are a wonderful speaker. Good luck!
Chris
I ended up selling my Concertos and now own Grand Pianos and could not be more happy. They remind me more of the Concertinos but a much bigger version of them. As far as harsh and grainy, I have NEVER heard a Sonus Faber speaker sound that way. Must be a terrible match of equipment. The Concertinos are a wonderful speaker. Good luck!
Chris