USB Volume between RPI and Caiman II
I have recently been playing with an old Raspberry Pi B that I had kicking around. So that it would work with my SB Touch and SB Radio I chose the piCorePlayer image. Quite quickly I got this working feeding my Caiman II DAC via USB (I don't have a Hifiberry Digi board with optical/coax outputs). It sounds pretty good but, compared to the volume output from my SBT, the RPi volume is somewhat less than half that of the SBT. Both players are set to have fixed max. volume output and the rest is all digital, isn't it? The output volume from the SBT is the same via optical or coax, so why the USB output from the RPi differs is a mystery to me. It is not clear if the cause of this is somewhere deep in the piCorePlayer ALSA settings or the Caiman II (which has Stans' upgraded chip). I will eventually buy a Digi board but fear I could have the same issue with that too.
Has anyone else come across this and have a solution?
Thanks!
Cheers
Alastair
RPI4/PI2AES running PiCorePlayer/LMS-> AQ Carbon AES -> Topping D90 DAC-> Khozomo Passive Pre-Amp -> 4x Temple Audio Monoblocks powered by 2xLiFePO batteries->Van Damme Black Bi-Wired to B&W 804 Nautilus and Sommer Carbokab 225 Interconnects