Well I found a little information on them and they look like they have a sensitivity of over 90 db which is pretty good but not close to 100 which would make them better for lower power amps like yours. But depending on your listening habits you might be fine. If you listen to your music at lower volumes for the most part you might be fine since they seem to cater to the lower powered side of audio. But I would say that the only thing that might be missing is the dynamic capability when it comes to the occasional cranking it up if that is something you ever do. They are going to be harder to drive than the 301's just due to the speaker themselves being more to drive due to more drivers and more cabinet. It really all depends on your listening habits, but I NAD amps have a very good dynamic headroom for there power rating.