Had a strange problem using Shure PSM900 IEM, with 2 different sets of earpieces (unfortunately don't have details but they'll be decent models) there was a loud squark followed by a momentary silence (as if the receiver pack was going into some sort of overload protect mode?). This happened using different frequencies and with different packs. The same packs and frequencies did not exhibit this behaviour using other earpieces and headphones (at the same time as it did with the errant ones on another pack with same feed). No other band members were having this problem on this show also using PSM900's and this has never been a problem using Sennheiser G3-300 IEM. Any clues as to what the problem may be? Unfortunately I do not have access to the gear to try anything but I'm sure we are very likely to have the same combination on future fly out gigs. Thanks
