Funny, I was just reading the article you mention but you are confusing the Plinius recommendation with the Rowland recommendation. In the article John Marks recommends early model Rowland products through the Concentra II and also recommends all Plinius pre-curved casework excluding the "baby" integrated amps, giving special praise to the 8150/8200 integrated amps.
I can't comment on the digital amps being left out. I haven't had the opportunity to listen to them.
I can't comment on the digital amps being left out. I haven't had the opportunity to listen to them.