Spdif out to XLR

[Axel]

If I am not missing anything there is no way to get a balanced output from Devialet Experts. The converters won't really provide you a balanced output. Your best shot will be using the digital SPDIF out of Expert but in that case your headphone amp needs to have a digital in (and a DAC).

Thanks, yes I realise there’s no way of getting a proper balanced output from the Dev. I don’t want to change my headphone amp to achieve this, but I’d like to get rid of the 50Hz hum, which is only bearly noticeable as doesn’t interfere with listening at all, but you know how picky some of us "audiophiles" can be! Haha.
I’m going to check the routing of the RCA cables from D to HA to make sure they are away from potential sources of interference.