Hi Dbjain,
I have a pair of Avalon Indra and a shindo Giscours preamp.
I first bought a giscours premap (just amazing ;) ) and after I tried to find my speakers.
I listened to : Wilson WP8, Sonus Faber Cremona M, sonu faber stradivari, Verity Audio parsifal, B&w 800d and some others.
(I don't like the sound of sonus faber because it is slow and quite lush.)
For my taste (clarity, speed, tonality, soundstage) the avalon Indra is another league in comparison to the others.
Maybe it can help you in your search ;)