I have two:

Playback via my PC of my network media server hosted .WAV files through FooBar2000 doing upsampling to 88.2K and then into the Meridian 568. Best redbook experience so far.

Second is replacing two Velodyne ULD-18's with my built-in Infinite Baffle sub . Mates beautifully with my Martin Logans and is a bottomless pit of low frequency bliss.

Jonathan
My System