microphones distort horribly

i have two shure wireless microphones. one is set to the low impedance level. both sound horrible and distorted. i cannot go past 1/2 on the microphone levels. if i do, horrible feedback kicks in.

i tried a wired microphone and while not as bad, i cannot go past 3 as the same horrible feedback kicks in.

please help!

Hello,

Welcome to the forum.

Please precise:
- the model(s) of the microphones
- the model(s) of the wireless receiver(s)
- the model of the sound card/DJ controller on which it is connected
- on which input of the sound card/DJ controller the wireless receiver is connected
- with which type of cable the wireless receiver is connected.

Many receivers for wireless microphones have a line output instead of microphone level, so they must not be connected to the microphone input but to a line input.
Reading the user manual of the wireless receiver is as necessary as reading the user manual of the microphone.