I have firmware 1.50. I mixed a new sound installation (24 bit, 48 kHz) yesterday, it sounded fine on the studio monitor (Kali IN-8) and in the headphones (HEDDphone, LCD-XC). This morning I was listening on the G5 in BT mode with my LCD-XC headphones and at 6.56 I noticed that I could hear two small soft clicks. I got a bit angry, I said there's no way I didn't pick this up during mastering. I listen to the sound mix on the computer, no clicks. In BT mode, you can hear the little clicks in the same place on the phone and on the computer. In USB mode nowhere the clicks only in BT mode. I also listened to the material with other BT devices, e.g. the Lypertek Tevi, and no clicking there either, only on the G5... Is it possible that there is something to improve in the firmware....?