I don’t know about Redphu’s problem, but with an upgraded Atlantic TRP I got last September, I had and may still have, a bad (new) hum/buzz going from its faux-XLR ports directly to ATC active balanced speakers with MG Audio balanced ICs. The dac and speakers were powered from a PS Audio P15 Regenerator. The hum was so loud it required an extra 10 dB on the volume knob vs. the RCA outs; i.e., the noise audibly played along with the music. I’ve been using the past tense because for the past couple of months it’s been in for repair, including rewiring of the XLR outputs, so to be seen what turns up. Plus, I now have a preamp and will soon have a balanced one. But looking back, I would strongly advise against getting unbalanced XLR outputs with the Lampis, at least not without speaking directly with Lukasz first. Adapters are probably in most if not all cases a better choice if needed.