I would like to use my C658 just only as a source. I own another preamplifier and I want to use it to preamplification signal from the C658.
Unfortunately, I can't set my C658 as a source only. In the menu I set the output level as fixed (through the app in my iOS phone or app in my Mackbook) and I have to decrease gain. It doesn't work. When I push the volume control on the remote or on the unit, fixed volume turns off and sound is mute. After that the signal is on the basic output level, it means too high to use in my other preamp. In the other words, the volume control is not baypassed.
I also tried to fix output volume on BluOS input, but it doesn't work too. When I set the level to for example -15db, after a few second it returns to 0db gain. I do not understand, because when I do the same on the other inputs (like optical or phono), everything is ok and the set level remindes on the setting position.
Please, can you explain me a method I can use to correct connection with baypassed volume function in C658?
I used balanced preout output.
Thank you all for any advice