Let me tell you guys about my present speakers; they are 3 way; heil air motion tweeter, 6 inch mid, 12 inch woofer 92 DB efficient, they reproduce the electronics without any sonic signature of their own; the better the electronics, the better the sound of the speakers, which I assume is the case with any speaker. Any change of anything will instantly be detected, because you will hear the sonic characteristics of the change.
Although I don't have any complaints. (can't complain if you haven't heard anything else for ages; speakers are not wives, they're meant to be changed)
Thiels are one of the last speakers I liked. BTW I absolutely do not recommend custom speakers because of complications in regard to cabinet, but speaker kits are fine.
Happy listening