Querubinii

Hello Tore, I just purchased your ditto looper a few days ago and everytime i make a loop, there is a noticable drop of signal or volume when i press the switch to start recording compared to when it is in bypass mode. I was kinda worried since ill be using it for live performances and thought that everytime i will record a chord progression to loop say before i do instrumental, my volume will become noticably lower than that in bypass mode . Do i have a defective unit?