I just spent the past weekend listening to 11 different speakers, 5 tube amps, and 4 front ends at a Kentucky Decware gathering of 19 folks. Fortunately amoung the speakers were 2 Pi's that a nice young man from Arkansas built (true to the plans). I say fortunately because they sounded very good and showed themselves to be a great value. (They kicked the upgraded Adire 10.1's butts big time.)
Can't wait to hear more/bigger Pi's, although those filled a 20 ft by 20 ft room with 1.8 wpc.
Good job Wayne!