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Nice review! This IEM looks like hearing aids, hope it has strong deep bass.
It hasn't, but at the same time it's not the lightest in all their IEMs (CL750). If you want hear strong deep bas and some serious quality, get the T20 (not T20i).
How many hours of break in time is on them at the time of this review?
As they were a tour unit, I don't know - I think I was around 4th on the tour schedule, so a minimum of 100hrs prior to my time with them would be my guess. I didn't notice any difference in sound during my listening as the hours racked up anyway.