You are right Noelpastor, I could not even like a Evidence Temptation when I went through the same situation as you.
I could suggest you another approach in the absence of an ATC demo. You can buy a simple SCM11 from the used market for about $1.2k and listen to it. I preferred it to the C1. With ATC the sonic qualities remains the same whether you buy their entry level speaker or their top end speaker, only the scale, depth and bass extension improves. So if you do not like their entry level speakers you will not like even their highest end speaker and on the contrary if you like their high end speakers you will almost equally like their entry level models. Actually with ATC there is no "entry level", they are just meant for different room sizes and purpose (near field, mid field etc). Their drivers are not made to match a price point (unlike most other driver brands), rather they just build a driver for a certain application using all their knowledge. So, if you do not mind doing this simple exercise of getting a SCM11 (preowned) you will know exactly if it matches your taste.
I could suggest you another approach in the absence of an ATC demo. You can buy a simple SCM11 from the used market for about $1.2k and listen to it. I preferred it to the C1. With ATC the sonic qualities remains the same whether you buy their entry level speaker or their top end speaker, only the scale, depth and bass extension improves. So if you do not like their entry level speakers you will not like even their highest end speaker and on the contrary if you like their high end speakers you will almost equally like their entry level models. Actually with ATC there is no "entry level", they are just meant for different room sizes and purpose (near field, mid field etc). Their drivers are not made to match a price point (unlike most other driver brands), rather they just build a driver for a certain application using all their knowledge. So, if you do not mind doing this simple exercise of getting a SCM11 (preowned) you will know exactly if it matches your taste.