Jeff Rowland amp in unbalanced mode

Kijanki, you hit the nail on the head, that is the exact reason for my question: the 201 hasn't got unbalanced inputs either, whereas I would like to use it with a pre-amp that has only unbalanced outputs. Nevertheless Rowland's manual mentions that unbalanced operation is possible with an adapter, so I am curious to find out if someone has tried this. Btw, thanks a lot for the link, Bob.

No problem Guido. Rather on the contrary, thanks a lot for pointing out the differences between those amps. If I'm looking at the pair of JRDG 201 presently offered at a bargain here, it is out of pure curiosity as it would be my first acquaintance with Rowland as well as my first acquantance with switching amps. Noticing you put them in the more "sterile" (just to categorize them, I know we may be talking about nuances) group, it might turn out to be a bit of a disappointment, especially since I would have to drive them in the unbalanced mode that Rowland themselves obviously consider not to be the optimum. Have you ever heard the Danish made Acoustic Reality IcePower amps, in particular the eAR 1001-REF mono blocks? (Or perhaps someone else, reading this thread?) They are moderately priced (factory sales), the specs are interesting and they look very stylish - actually quite "icy", but I wouldn't want to judge the book by the cover.