Olivier, the Metals and Earth are waaaayyy outta his price range and I have yet to see a pair on agon. I did see the Fires once. So going used would still be a challenge. I heard the Arros, Sttafs and Excite X16s in my dealers ht cove in his large room. Basically there's 3 walls, the left wall is about 54" tall. Tall enough to hide most speakers behind but you can see over it when you're standing. It's about 10 ft wide and 14 ft deep. The Sttafs I heard 3 different times. The other 2 were in the big room, once against the 54" wall about 1 ft off it, the other time in wide open space. The bass response of the X32s and Sttafs were at completely different levels due to the added woofers ability to play louder with more output.
Dynaudio Contour 20, Focus 210C, DM 2/6, Hsu VTF3 MK5 HP, Oppo BDP-103, Naim Uniti Star, Marantz SR5010, 60" 4K Samsung LED LCD, XBOX ONE S