I am running Pendragons with a 11 watt Xindak amp and it is plenty of power. I am getting powerful, tight bass with beautiful tonality and very articulate upper bass. I wouldn't be inclinded to think a 4ohm load is big deal as long as it is linear. Capellaudio bought those Pens and described his room as being small... I would conclude that would be the issue. The Pendragons need more than just 10x12 or so room to play or they will overwhelm the room. It sounds like they were a bad match with that Scott amp as well... but lets not be quick to such a conclusion that it is a 4ohm problem... because as I said my little chinese amp has no problem whatsoever. Since I replaced the tubes, I am getting crystal clear beautiful sound that transcends the Lore by a fairly wide margin (as it should re the price difference), and with that I am off the upgrade train finally! That is not to say that the Lores don't sound similar.. as they are great and surely do.. but the Pens recreate the live event better as they have a much thicker, and more powerful bottom and play more open due to the design with the triple tweeter array.
This gentleman clearly downgraded because in his room, simply less is more.
This gentleman clearly downgraded because in his room, simply less is more.