Emotive Sira or Shindo Monbrison

I own a emotive sira but have thought about shindo preamps for quite a while.

Have any members had the chance to compare these 2 brands if so could you convey your thoughts?

I have Altec Santiago speakers as well as Horning Aristotle with a Monaco 845 amp

thanks for your info and time
Sticking with it disregard
Anybody heard both? I’m still curious