I own DMP-A4 and use Apple Music with Hi res lossless for downloaded music. I have a DAC (Qutest from Chord) connects with USB A/B. Firmware is up to date. What I have is no matter what music quality (hi res or lossless) it always upscale to 192khz. I set Fixed sample rate output to Original sample rate so I see 44.1khz coming through with CD and files. I want to pass through with original sample rate. Any idea?