Tried to upgrade from NUX to LD but the problem remained. When playing single notes or harmonics on my acoustic guitar (fingerstyle) there is a very audiable hiss throughout the duration of the tone.
When I strum the chords, start to sing, the rest of the band joins in, then it is working fine.
So in a band situation this for sure will work, unfortunately in my case, did not. Reciever is built from plastic so if it accidentaly falls, could get damaged.
PS. wired iem system does the job but....it is wired :(