ATC SCM40 in house tweeter & midrange

How can one tell if an ATC speaker (SCM40) has the better in house tweeter and midrange? Is there a visual way to tell, SN decode, etc?

tinear12303-09-2019 6:01pm

tinear123 OP Details Discussions Posts This discussion Message User 240 posts 03-10-2019 at 03:04am Copy Comment URL Report Comment Edit Delete Perfect, thank you! This is one of the values of this forum.
motokokusanagi Details Discussions Posts This discussion Message User 189 posts 03-10-2019 at 02:10am Copy Comment URL Report Comment Edit Delete The faceplate/waveguide and number of screws. 3 on the new ATC tweeter. 4 on the old Seas one. All versions use the ATC mid.
donquichotte Details Discussions Posts This discussion Message User 112 posts 03-09-2019 at 07:57pm Copy Comment URL Report Comment Edit Delete Email the serial number to ATC and ask...