There is an alternative if using Airplay - buy a 1st generation AirPort Express off EBay (got mine for $10). Set up to join your existing network. Use the 3mm audio out to connect to your amp/preamp etc. (!st gen AirPort Express are Airplay 1 receivers and the stream from the iPhone will be lossless). Darko's site has additional info. Won't help getting hi-res however.