I have discovered that with the iPad-as-streamer system I am using presently there is some noise glitchy-ness audible through the speakers when playing with the iPad. No like-y that!
Also, after a week of listening, I think I am hearing — and this is totally speculative — some kind of digital sameness or homogenization across recordings. Perhaps this is because the current iPad set-up is imparting — or importing — some kind of noise?
I think everyone here would be surprised if you weren't hearing this.
Speaking in very low level generalizations. iPhone have a bias towards music playback separate from voice calling. iPad are media oriented - watching movies and tv shows - and graphically oriented to make the most of web content.
How is this gradated approach going over on your other site?