I´ve now tried my Shinkohs in the load impedance positions (R1) in my Piccolo (based around tubesforever recommendations - Black gates, teflon, Dynamicaps etc.- thanks again, Jim) and all I can say is that there is a quite appreciable difference in comparison with the PRPs I had. To start with, it goes lower, there is more bass presence and the bass notes vary more in tone and texture and are no longer just one note. Highs are cristal clear. The separation between fast piano notes is just so much more obvious as is the sound of sticks against cymbals. I´m really quite shocked. By the way, my cartridge is a retipped Linn Troika.