I was looking for a copy of overlapped response graphs of the CT-125 and the K77 but could not track it down. Here is a measured response of the CT-125 in a Cornwall. I can assure you that the CT-125 is a much better driver than the K77,being smoother and more extended (the horns lens is identical but for a phase plug). I dropped a set of the CT-125 into my old Heresy and was delighted with the upgrade. Best regards Moray James.
this makes a lot of sense... thanks
I guess the point I was making was that it's not a significant upgrade in terms of a night and day difference to the existing k77. there are measurable differences, but those differences are not always audible or significantly audible.