I've used 4Pi with JBL 2226H below my Oris 200. This is a very nice combination, but the deepest bass is missing. Wayne suggested a 2245H but it is difficult to get here in Norway and besides, my upper limit for box size is around 5 cu.ft. I think both the 4Pi with a 2245 and the 10Pi with a 2226/2227 would be a nice match for the Oris. I guess the 2235H also would be nice. As far as I can remember, the 2235 driver should be used in a 4 cu.ft box according to PiAlign.

Frode