Tidal vs. Roon: MQA Playback on iPhone with Cobalt

Hello Everyone. I’m using a DragonFly Cobalt with my iPhone, a 10 XS running ios 13.3.1. I’m using the less expensive Apple Lightning to USB adapter and not the USB 3 Camera adapter. When I play an MQA track through the Tidal app on the same phone, the Cobalt displays a Magenta light for the bit rate. When I play the exact same track from Tidal through Roon on the same phone, the Cobalt displays the Green light (i.e., 16-bit). I’ve been cautious about ensuring that I’m playing the correct version of the track in Roon. I’m new at all this and I’m wondering if I’ve got the Cobalt set up correctly in Roon. I’ve tried setting setting MQA Capabilities to Renderer Only and also to Decoder and Renderer. Neither resolves the issue. Any thoughts or suggestions on this? Has anyone else had a similar issue? Thanks in advance!

Can you post your signal path that’s showing in Roon when playing on the iphone. click on now playing and the coloured dot on the right to reveal this and post it on here. Do you have enable mqa core decoder enabled in the audio settings advanced section?

The decoder setting is enabled. Looks like Sample Rate Conversion is the bottleneck, which at least is consistent with the error.

Could you show an MQA track not an AAC one.

Well, that may be my problem. I’m clicking on the MQA version to play but clearly the AAC versions are playing. Try as I might, I’m unable to get the correct version to play. I upgraded my Tidal account recently, and I know the upgrade happened because, as I said, I can listen to MQA in the Tidal app, but perhaps I need to do something different in the Roon app.

Ok. Fixed it. Your questions led me right to it. There’s a setting in Services, Tidal for Streaming Quality. This was set to High; it needed to be set to Master.

I appreciate everyone’s guidance and patience. I hope to be able to pay it forward one day. Thank you!

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