It seems like for a bunch of enthusiasts, no one really knows what they are talking about around here...
Allow me to provide a hint - anyone who thinks that AirPlay is "indistinguishable" from other methods of data delivery on a network has absolutely no idea what they are talking about. You should not listen to these people, they have no insight to offer, and your enjoyment of music will suffer as a result (I'm speaking as someone who listens to music. not gear).
To also slightly illuminate your awareness as to why purely rational, knowledgable individuals are willing to part with hard-earned cash to improve their listening experience in this particular arena, I offer the following sliver of technical analysis as to what is really happening with audio and streaming.
AirPlay is flawed because it is using kernel-layer audio processing on the device one is using to play back the audio. This alone means the signal itself is suspect as it may not be bit-perfect (and usually isn't). Not to mention, sample rate conversion on the device and in the player/playback software (which itself may be considered as a "component" in your digital audio system, much like a CD transport - it's just virtual so most pay no attention to it) can dramatically affect sound quality before it is delivered over the network to the endpoint. Sure, it works (meaning, the 1's and 0's sent by the device arrive at the endpoint intact as they were sent) but most have no idea of flaws in the playback software (application layer) they are using, let alone the fact that the device uses kernel audio post-software (so there are two competing processes at work).
This is why so many "audiophiles" use bit-perfect programs such as Audirvana on their Mac or PC (I also remember Amarra, and personally used programs such as this one when I was using a Windows machine to play digital music: https://sourceforge.net/p/playpcmwin/wiki/PlayPcmWinEn/)
The answer for the OP should be - please don't play music from your iPad at all. Use your iPad as a control point, not a playback device, and buy a computer or device that provides bit-perfect output to your DAC (or better yet, has a high-quality DAC built in). Those suggesting a Raspberry Pi are on the right track, but much of their reasoning is flawed (digital is digital).
As an analogy, very few in the digital video or imaging world would have any problem acknowledging the dramatic affects software processes (embedded or otherwise) can have on the final image results. The idea that audio is somehow different is simply ludicrous.
Allow me to provide a hint - anyone who thinks that AirPlay is "indistinguishable" from other methods of data delivery on a network has absolutely no idea what they are talking about. You should not listen to these people, they have no insight to offer, and your enjoyment of music will suffer as a result (I'm speaking as someone who listens to music. not gear).
To also slightly illuminate your awareness as to why purely rational, knowledgable individuals are willing to part with hard-earned cash to improve their listening experience in this particular arena, I offer the following sliver of technical analysis as to what is really happening with audio and streaming.
AirPlay is flawed because it is using kernel-layer audio processing on the device one is using to play back the audio. This alone means the signal itself is suspect as it may not be bit-perfect (and usually isn't). Not to mention, sample rate conversion on the device and in the player/playback software (which itself may be considered as a "component" in your digital audio system, much like a CD transport - it's just virtual so most pay no attention to it) can dramatically affect sound quality before it is delivered over the network to the endpoint. Sure, it works (meaning, the 1's and 0's sent by the device arrive at the endpoint intact as they were sent) but most have no idea of flaws in the playback software (application layer) they are using, let alone the fact that the device uses kernel audio post-software (so there are two competing processes at work).
This is why so many "audiophiles" use bit-perfect programs such as Audirvana on their Mac or PC (I also remember Amarra, and personally used programs such as this one when I was using a Windows machine to play digital music: https://sourceforge.net/p/playpcmwin/wiki/PlayPcmWinEn/)
The answer for the OP should be - please don't play music from your iPad at all. Use your iPad as a control point, not a playback device, and buy a computer or device that provides bit-perfect output to your DAC (or better yet, has a high-quality DAC built in). Those suggesting a Raspberry Pi are on the right track, but much of their reasoning is flawed (digital is digital).
As an analogy, very few in the digital video or imaging world would have any problem acknowledging the dramatic affects software processes (embedded or otherwise) can have on the final image results. The idea that audio is somehow different is simply ludicrous.