Many thanks for responding.

My speakers only have the 3.08 firmware and my usual Meridian supplier no longer responds to emails. I've managed to update the firmware before so I can't understand why it isn't posted on the Meridian website?

In your experience would standard media players in Windows output the required digital stream? Also, instead of using my desktop PC (which is a pain to move) I could use a laptop but would need some kind of USB dongle to get the necessary output. I'm not exactly sure what I'm looking for.

Like I said before, I'm not ready to spend on additional Meridian hardware at this point so any further help you can give is much appreciated.

Thanks

System: DSP7200SE (upgraded) + RPI (PiCorePlayer) with Allo Digione running Squeezebox system.

Also various legacy 500 components - 557x2, 502, 508-20bit, 566-24bit plus too many other misc amps/speakers.