ITrack Solo Lightning : Irritating 'boom' while unplaggin USB

Every single time I plug the interface in or out of the computer it makes a really irritating sound, big "boom" distinctively hearable through the PA. I have never had such problem with any audio interface, neither USB nor firewire audio interfaces. I don't know what it is caused by, but it really drives me crazy. Whether I plug the interface in, or I plug it out, it should not make any sound on the PA until I turn the volume up and make it play from the computer. Also, there are hums and buzzes while the interface is being plugged in. But it isn't the case. I use Macbook Pro '15 (early 2013) and don't have this kind of problem with other devices (as i.e. Traktor Kontrol Z1).

Nevertheless, it works for playing and recording stuff. But plugging and unplugging it is very frustrating. It should have not been like that, I expected higher quality. For this money - it's rubbish.