I recently ordered an open-box SM7B (perfect condition), so far so good, except there's some crackling noise coming out of the audio signal.
You can hear a sample of the crackling noise here, it's normalized so you can hear it clearly.
There's only a XLR male to female cable between the microphone and my X2U adapter. My previous microphone AT2035 didn't have this issue and was also connected to the X2U. The suspects here are the XLR cable or the SM7B itself.
RX Denoiser doesn't seem to recognize the crackling as noise so I'm unable to clean the audio like I did with AT2035.