When and what was your last significant equipment upgrade?

Townshend Audio speaker bars. I never could have thought the fantastic results on my plannar system. These things are incredible and at very reasonnable price.

Purchased an Ayre K-1xe preamp yesterday to replace the Modwright LS-100 that I can't seem to find quiet tubes for.  Hopefully finished upgrading now. 

New Classic Audio T3.3 speakers with field coil option and Atmasphere Novacron monoblocks. WOW is all I can say. They are still breaking in. 

Gallo Reference 3.1 loudspeakers just last month.

Bought one 1 meter AQ Colorado RCA interconnect and two .5 meter ones on the Music Direct half price sale.  This is the third day of around the clock break-in, much of it with Purist Audio Designs System Enhancer Disc and I have never had a clearer window to the music.  It makes other cables sound "confused"  Ridiculously great value at such close-out prices.