Has anybody ever had a problem with the E6 sounding "boomy" ? The only way I can get halfway decent sound out of mine is too drastically cut the lows both on the soundboard and at the reciever . Then I have to boost the input channel gain on the board to make up for cutting the lows so much , which results in a feedback tightrope act . I also have some old Shure WH20 dynamic headset mics which I have no problem with . Well gotta go , doors open in 2 minutes .