Hello Jeff,
Love your Nano's! You're right! Once you go horns, you never look back. When i switched to my Uno 2.1's, i still had my Pass X350.5 as well. Couldn't get rid of it fast enough. The sensitivity of the horns with the high powered pass produced a lot of noise. Decided to go all digital with room correction. Now it's dead quiet with your ear to the tweeter. I've heard a lot of good things with Hovland. Always wanted to try it.