Core Machine (Operating system/System info/Roon build number)
iMac with newest Roon Core.
Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)
Apple Airport Extreme to iPhone
Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)
Apple lightning to USB to iFi XDSD OR Project S2
Description Of Issue
Hi! I love the little iFi xDSD for portable headphone listening. But I found something weird. When I listen to MQA tracks straight from Tidal App on my iPhoneX (with Apple lightning to USB camera kit), I get a purple light on xDSD(i.e. MQA hardware decode/render), and all is good. E.g. Cat Stevens “Where does the children play” in 192/24 Master sounds great! But when I listen to the same track, by using Roon on my iPad to send stream from Tidal (via Core) to the same iPhone, with same cables etc., I get a green light on xDSD (i.e. no MQA, just PCM). I would have been tempted to conclude Roon or it’s settings are to blame, but if I repeat the exact same experiment with my Project S2 instead of xDSD, I get MQA on S2 in both cases, i.e. Tidal App straight, and Tidal via Roon both shows MQA. So it’s not Roon or it’s settings, per se, but the combo with xDSD. Weird, since the xDSD works straight from Tidal app?
I double checked all settings in Roon to make sure the MQA data is passed through all the way (ie not decoded by Core or iPhone app), but still no go. What’s also interesting is the Project S2 seems to “hunt” a little bit before settling on MQA @ 192kHz, almost like it’s negotiating capabilities or syncing to a higher and higher bitstream one by one. But in the end it shows MQA 192kHz.
I tried all combos of PCM vs DSD vs DSD over PCM, Initial etc., and obviously disabled Core MQA support. What perplexes me is the asymmetry: Both Tidal App and Tidal+Roon works on Project S2, whereas Tidal App works, but Tidal+Roon doesn’t on xDSD.
Any ideas ?