Well, my Legacy Whisper XD's arrived last week and I've been listening to them with my Cherry Mono's (the pictured ones are mine).
In terms of speakers, I think I finally reached speaker utopia (best speakers I ever heard, and I heard many).
The amps perform beautifully. Dynamics, extension, life-like clarity are three attributes that come to mind when trying to find areas the amps excel in (whether you like Von Karajan or Led Zeppelin, they perform). I couldn't be happier.
By the way, for those of you who think the Whispers lack a powerfull bass, listen to the XD's.