Answer from Oppo, it switches automatically, you just need a suitable cable.

You can get an MC200 for £800, an add on MS200 (fair SQ upgrade) for £350. Not cheap but not $7000. Using the MC200 with the iPad app gives most of the functionality of the C15. Check out Hitchhikers, people end up listening to much more music with Sooloos.

Along the lines of listening to more music, can I recommend Meridian Sooloos as a way of listening to more of your music collection. The ease of access and the various ways of delving in to your collection are excellent.

Re portables, don't forget Pono, that could be a nice combo

Anyone suggest a good amp for these "theoretically"?   Cheers

Hi All, what would be a good amp for the new Oppo headphones? Source would be analogue (digital dac'ed). Would the Epiphany O2 be underplaying them?   Thanks

Newbie here, first post, hi all!   The new Oppo headphone amp has toroidal transformer(s) and linear regulator(s). That suggests to me that it isn't multi voltage but I'm no expert. The rear case says 110-120v  230-240v, that suggests maybe. Would a US model work in the UK without transformer...