Pretty much agree with the above posts/recommendations. The Model 1's (like most other small speakers) are inefficient and tend to do their best when on a high current diet.
Tonally speaking, I found that the Model 1's bode well with warm sounding gear. Plinius. Naim. Sim Audio's entry to mid level gear. Unison Research. Audio Analogue. Monarchy Audio. Luxman. Accuphase. Blue Circle Audio. Rogue. Stuff like that should work well with those little monitors.
Tonally speaking, I found that the Model 1's bode well with warm sounding gear. Plinius. Naim. Sim Audio's entry to mid level gear. Unison Research. Audio Analogue. Monarchy Audio. Luxman. Accuphase. Blue Circle Audio. Rogue. Stuff like that should work well with those little monitors.