Congrats on the purchase of the Spatial Audio M3 Turbo S speakers. I got the little brother The Spatial Audio M4 Turbo S speakers. All I have to say is make sure your amp can handle 4 ohm or lower loads. I know Clayton specifies that and I forgot. I hooked up my Accuphase E202 to them and played Nora Jones' latest album and the distortion was gut wrenching. I stopped the track immediately. The current amps I use with the M4 Turbo S are the Response Audio BellaMax 60 monoblocks that use 2 6C33C tubes in each amp. Very nice sound to me.
Anyway best of luck with the sales.