Hi Innocepts,
Currently, Tidal's iOS iPhone app will not decode MQA files at all. You'll only hear 'redbook' 16/44 cd sound quality. Tidal's macOS *desktop* app **will** decode the MQA files with what's referred to as the 'first unfolding' of MQA. iOS first unfolding will eventually come to Tidal's iOS app, but nobody seems to know when exactly. If you use Meridian's explorer2 dac, you will get both, the first and second unfolding of the MQA file. I *think* that will hold true even via the iPhone iOS Tidal app, but you'll need to double check that. The Meridian explorer2 dac is a great bargain. AudioQuest have usb dacs you can use to get MQA decoding from as well, but I think they stop at 24/96 first unfolding vs the Meridian's 24/192.
As in love with MQA sound quality as I am, I've yet to hear the second unfolding 'goodness' since I do not own an external MQA dac...yet. 🙂 I'm waiting for a MQA dac in the $1000 range or a used Mytek Brooklyn DAC.
I listen to MQA via Tidal + Audirvana software via my MBP. That gives me the 'first unfolding', not the second unfolding. Sounds bloody awesome. Can only imagine the second unfolding.
My system has two Tidal & HiRes sources. One, through my Roon server on a Sonic Transporter == no MQA (yet), but accesses my HiRes files on a usb drive attached to the Sonic Transporter + Tidal. Roon should support MQA 'soon'.
Second source...Audirvana software recently added 'network' capability, so I launch Audirvana...point it to my Sonore ultraRendu box to receive the Audirvana, MQA decoded files...the ultraRendu then passes those files on to the DAC that lives inside my powered Kef LS50W speakers.
I buy my hi res music mostly from hdtracks.com.
Hit me up with any questions.