The mike is ok, i think the input of the qu is clipping, i had an qu16, i always used it with an remote stagebox.
qu is known not to handle very hot input’s, most proffesional users usses the qu alsways with a stagebox to handle the signals.
If a read the specs of the mic correct the mic has a very high output, this is common for condensor micro’s, but to many for the local input of the qu.
Richard