This is just from my personal experience at Klipsch, not an official word from the company itself.
It takes a while to go through the process of getting a new vendor for a loudspeaker. Rest assured that the testing and quality assurance that Klipsch goes through is very thorough. There are several guys in the engineering lab and they do all the statistical methods and whole bank of tests on quite a few drivers TO DESTRUCTION in some cases to check the frequency response, power handling, etc. of any component put into Klipsch speakers. I've witnessed this process and it's all very proper and by the book. Roy will not put anything into a pro Klipsch product that does not meet the set engineering standards and listening tests.
For instance, for power handling, there is a separate shed out back with soundproof booth. Speaker is loaded into whatever cabinet and an automated process takes the speaker through a variety of 'warm up' then steps up the wattage over many hours until the speaker fails. it's quite amazing what they put the speakers through. I've seen rack and racks of the same drivers that are used to determine that the manufacture is staying within a stated spec. Klipsch retains some of those in the middle of that range as 'mules' that will be the new standard for any future vendor. Presumably that's the process they're going through right now for you. It takes time. It's worth it.
Jubilees in the Gallery
Khorns on standby
LS (cane grilles, custom DeanG networks, making them some of the sweetest sounding LS on the planet) CW/ KLF-C7 Hearth Room HT
forte II home office
icon WB 14 bedroom
KP682/362 w/ KSM2, KSM12II PA system
MCM 4 way restored / K201 - Workshop
LSI-BG split x 5 / KP250 outdoor HT
KP301 'truck' midi sized PA
KP262, KP110, KP172, HIP - extra pro stuff
KP600 system being slowly restored
RB5II Oak, HOO (cane), HBR, HD reveneered walnut - just laying around