SCM7 is a very small speaker, costing $1k new. Comparing it to the C1 ($7k) may not be a good idea. Listen to an SCM40 ($4k) and then compare it to a C1 in whatever parameters you would like to.
I suggested the SCM11 approach only to get an idea about what an ATC sounds like.
I suggested the SCM11 approach only to get an idea about what an ATC sounds like.