I'd like to hear an answer to that too. I will say that on paper - the Vindicator is giving you roughly a 3dB increase over the Paladin - which is barely noticeable. In other words if the Vindicator has enough power for a speaker so will the Paladin. These are flea watt amps - on flea is slightly bigger than the other flea. But the SPx AlNiCo which I have I did not audition with the Paladin or Vindicator - I have only auditioned it with Empress Silver and Kegon and Quest. All have more than enough power. And again - on paper would give you roughly 6dB more than the Paladin. I didn't feel the Paladin was enough for the J/Lx at ~89.5dB (not in corners). Great sound but not enough especially if the room was larger or you like it loud. Still there was a certain kind of magic to the Paladin and I liked the sound quality more than the Vindicator (if I am being uber picky). Maybe Peter can make a Parallel Single Ended 45 to bump the power output to 3.5-4 watts.