The late Corydon Johnson rebuilt the EMITS and EMIM’s.
Chris spec’d new Woofers from Parts Express and I believe did some Mods to eliminate the “Servo” (accelerometer) part of the system. Paul did a Video on them about a year or so ago.
Ive listened to both Paul’s system at the factory and Corydon’s before he sold them after 40 years of ownership. Both were amazing and did all the Audiophile terms extremely well.
Before he passed away, Corydon on his IRS V’s (purchased at Lyric HiFi also with ML-2’s on each channel) modified the EMIM’s so that they were a true fullrange driver thus eliminating the EMITS which he said were a pain in the Ass to rebuild. The Gentleman who bought the IRS V’s is currently extremely satisfied with the work Corydon did. The Woofer stacks were rebuilt (woofer surrounds reformed) but the “servo” stuff including BHK’s Amp to drive the stacks were untouched and 100% operational.