dBpoweramp tags wave files according to the Microsoft specification (LIST tags), also with an ID3 chunk. Wave files are created using chunks (that is separate components), simple wave files have a header chunk and a data chunk for the audio. A tagged wave file will have a header, audio data, and id tag chunks.

Poorly written players will read the header and assume every chunk after this is audio, so the crack sound is the player playing the ID Tag as audio. There are 2 choices:

Disable ID Tagging for wave files (run dbpoweramp configuration >> Codecs >> Advanced)
Or check if your player has an update to fix this playing bug