In recent years, I'd have to say it was my extended listening with the Dynaudio Evidence Master. That pair was driven by a pair of Krell Reference monoblocks with a Musical Fidelity CD player. The playback was close to flawless with a couple of very demanding test discs. Every other speaker I'd listened to tripped up on some individual aspect with those discs, but not the Danes. One of my test discs is done by a jazz trio that I'd seen live before, and through the Danes, I got that eerie sense of deja vu. What really impressed me about the Evidence was how uniformly at ease it was with electronic and acoustic instruments, and how well it imaged off-axis. Of course, at $80,000 a pair (not to mention about $100k for the amps and $3k for the CD player) it had better sound damn good! (then again, in prior years I've heard many big ticket systems that left me cold)

As far as affordable systems go, I'd have to say right now my recent audition of the Paradigm Studio 20 v.3 was mightily impressive. The imaging on those speakers is amazing for its price point. Hooked up to a $600 Arcam integrated amp, it made for a very nice two-channel rig. I could imagine that an Adire Rava SE would go very nicely with that setup.

P.S. TS - interesting that we have very divergent opinions on the Wilsons. My audition of the Wilson Sophias (hooked into a Theta multichannel front end) was not so impressive. I would hope that the Watt Puppies are different.