Dave, I have not used PC1 on Capri since last Summer. . . my impression at that time was that PC1 slowed down Capri response and closed in things a little. . . let's remember that Capri draws only 6W. . . perhaps capacitance in PC1 excessive for it? Never the less, I will soon insert PC1 on Capri once again. . . for all I know, my opinion may have changed.
Brauser, I have not tried PC1s on 501 monos, but the Continuum 500 is equivalent to a pair of 501 monos with a 1500W Power Factor Correction front end (something like 2 PC1 devices), and an aditional bank of output bulk capacitors. Dave can comment on its sound as it compares to the 501 monos.
Guido