Is there any way to connect a record player (RCA outputs) to AirPlay speakers? I've got a very simple situation, which is: I have a generic record player with a preamp and RCA outputs (red/white). I have a pair of speakers connected to an old Airport Express, one connected to a new Airport Express, and an Apple TV.

Can I make the record player Do A Sound in the AirPlay-connected speakers? Options I've considered are:


A Raspberry Pi, but the software side of it may be more trouble than it's worth
Connecting the record player, using an adapter, to my iMac, and then using Rogue Amoeba's LineIn to capture input, and transmit all audio, using Soundflower and Porthole, to AirPlay. This worked, but the lag between different speakers is considerable. Also, I'm using three separate apps for a task I should be able to do with a small box.


This doesn't seem like that maddeningly difficult an ask, but so far I've come up with nothing that works as an AirPlay transmitter in the same way as, say, iTunes. I can get this amp for cheap: http://www.pioneer.eu/uk/products/42/98/405/VSX-529-K/page.html but I don't understand if it can transmit as well as receive AirPlay streams. Halp?
Now I have figured out a simple and reasonably cheap solution for Airplay that does not require a computer, paid apps and similar, only a cable, that have multiple other uses, and an iOS device not in use while listening (depending on the circumstances I use either my iPhone or my iPad), see this

http://davidbo.livejournal.com/795.html (It is added to the Wayback Machine so it won't disappear).

Some non-dealbreaking minor issues remains, I will update that article when I find solutions to them.