Hi @SmartplugHere’s a golden goose question, did you hear improvement using usb over coax? In paper, using usb has the advantage but our ear is not instrumental grade where tiniest information can be detected. The usb in ultra remain active even goes on standby and the dac sense it why it doesn’t turn off. I’m using the trigger 12v on the amp. I did not know independent rc don’t work right till I read your message. I will do extensive listening and weigh in the pros and cons of usb. Having dac that won’t turn off like before was deal breaker for me.
TBH If we talk about sound quality, between USB; SPDIF; and COAX I hear absolutely no difference. Qualitatively speaking, the three different connections, to me, all sound the same.
And....yes, I too would like my DAC to turn off using the automatic On/ Off instead of the Trigger