Should I upgrade from my Pre1L to Rogue 66 Magnum?

Geoff is correct - go to an Audible Illusions for a sensible upgrade.

I have never heard the Rogue, but I have a Pre2L, and I used to have an AI M3a. From what I remember of the measured performance of the Rogue, I doubt it would be an upgrade. The Anthem preamps are really very good. Their only flaw is a tendency to generate a little hum through the speakers in combination with most amps - just up close, not audible from the listening position in my room. I disagree that an AI would be an upgrade. I a/b'd my Anthem with my M3a over and over, and most of the time, if I thought I heard a difference it was in favor of the Anthem. Btw, my M3a had the same hum.

I'll stick with the Anthem until it's time to go to the "next level".

Thanks.