Joss, Brydo – hear what you’re saying re the Sonos speakers. Trouble is I’ve got the Quad system, bought before I’d worked out the value of streaming. So I’m largely using CDs and vinyl (reason for buying Quad) because I’ve got a lot of good LPs. Don’t really want to bypass the Quad with Sonos; at least, not yet. May have to because, aside from the PC delivering digital data into the system DAC through RCA connection, more modern stuff like mobiles and tablets will only connect via speaker leads which is useless. Will try a Bluetooth receiver to see if it makes any difference – I assume that I can send digital data into it. Will let you know how it works…