I’m currently trying the Audirvana MacOS trial software, and have purchased the Audirvana iOS app.
Normally, a USB HDD is connected to my Meridian 210 as a UPNP music server. Here, I use the third-party ‘mcontrol’ iOS app (nothing to do with Meridian) on my iPad to play music.
On my connected Meridian 218 (connected to my 210), by typing mcontrol:// within the Meridian Control app for the Meridian 218 I can easily switch between mcontrol and the 218.
Similarly, if I was using iPeng to control music from my Squeezebox Touch, I would enter iPeng:// in the url switching window of my Meridian 218 Control app. Likewise, Roon:// would produce the same result.
The problem is with the Audirvana Remote for iOS, since its title is ‘Audirvana ®’ rather than simply ‘Audirvana’. By entering ‘audirvana ®’ into the Meridian 218 Control iOS app, a url switching error message is returned. Audirvana is not alone in this issue, as ‘Amarra Play’ produces the same problem.
The remedy is for the ‘®’ to be removed from the title of Audirvana for iOS. It would then become one word alone, which would then work on my Meridian 218 Control app.