Can I connect my iPhone to my Ayre integrated amp

Probably the most important factor affecting the sound quality, beyond whether you use the headphone or the dock connector output, is the resolution of the music files, themselves.

Music in a lossless format is going to sound a lot better than the same music from a 128kbps mp3 file. I find, though, that the higher resolution mp3 files sound good enough given the fairly low expectations I have for the iPhone or iPod as a source. Of course, the higher the resolution of the files, the fewer of them you can fit on the phone.

I love internet streaming radio! There is so much music out there, it's crazy! Of course you can listen to your iPhone via the methods other folks have mentioned in the thread. The Pure Digital I-20 sounds like a good piece, but I've never used it.

For me, I have a Mac Mini running iTunes connected via USB to a Headroom Audio Desktop amp/DAC. This is a pure Headphone rig for me, but it also has pre-outs that can connect into you integrated amp or direct into a power amp. It's probably more money that you want to spend, but it does provide for a very good headphone amp and DAC if you need those components.

I'm a music lover more so than an audiophile at this point in my life. The convenience and incredible diversity of music available via streaming internet radio outweighs the sonic shortcomings of lower sample rates for me.

I recommend the HRT Istreamer. Great improvement in sound rather than the iphone dac/mini to rca cord. Cheaper solution if you do not want to go with the Wadia/dac route.

I stream Sirius and other channels.

Reubent - Yes, in my comments about music file resolution I didn't mean to imply you couldn't completely enjoy music at lower resolutions. I probably spend at least as much time listening to Pandora and Spotify as I do to the higher resolution sources I have.

The Pandora iPhone app is a marvel, giving you the music you know you like layered with similar music you had no idea existed, anywhere you have phone or wi-fi access.

Reubent and Sfar, Totally agree with your last paragraphs. Pandora is doing it for me.