I have an “interesting” experience. One of the 2-pin connectors on my SuperBax cable had developed a loose connection so a friend of mine (the one who last year reterminated the cable to 4.4 mm) has replaced both 2-pin connectors with Idolic connectors. I use this cable with my JH13 ciem and the 1Z. After getting it back I now have to turn the volume on the 1Z to 70 where I used to be at 50 to get the usual loudness. My Z5 and Z1R are still at the volume they always have been at. Anybody have any idea why this is.