Tidal via Roon & Air versus Tidal via AirPlay

[Gerronwithit]

I had not really tried out AirPlay on my Devialet Pro since having the CI upgrade so aimed my iPad Air at the amplifier and played Black Sabbath's 2009 remastered album with the volume set at -12 dB which is much higher than I normally play my music and resultant playback was pretty weedy in my opinion. I then did the same using Roon and Air from my MacBook Air at about -17 dB and the clarity and power were significantly greater. Just wondering at what the mechanics are that produced such a difference.