Us Yanks have a chain of stores here called Guitar Center.Every January they have a big sale to get rid of inventory before they have to pay tax on it. I got one of the Behringert 1952 Tube Composers of which you speak there 3 weeks ago for $149 US. It is essentially a normal Composer tha t passes the signal through two 12ax7 tubes after compression on it's way to the output.Yes,it has a stereo mode which would enable it's use on a mix. I have no experience with the RNC so I can offer no comparison,but I will say that I feel I got my $150 worth,it sounds good and everything on it works.They may still have some left,I got mine in the Houston Westheimer store.