Need your guys experiences/thoughts on the following: I bought a used Jotu a couple months ago and used it - so far - single ended w my HD6xx ..and love it. I also got a balanced cable (I send a pic of the Neutrik XLR input jacket to the manufacturer to let him know the termination) as well as a XLR-to-TRRS adapter (to connect the HD6xx to my LHL GO2A SE) a couple weeks ago. While the HD6xx works fine with the new balanced cable and the adapter to the GO2A SE, it won't work w the "balanced" cable connected to the Jotu's XLR input (even if the volume is cranked up to the max i only hear some very silent tunes). To further investigate I took the amp as well as my headphones to a friend of mine who has a Audeze LCD-3/Violectric V281 combo. Findings: my HD6xx works with his amp (which has the same Neutrik XLR input jack) but his LCD-3 doesn't work with the Jotu. Since this looked to me that there is an issue with the Jotu's XLR input I got in touch w Schiit Europe (Sonority Audio) - where it was originally bought - and sent the amp back to them for repair. In the meanwhile I took the HD6xx to another guy I know who has an AudioValve Luminare (which also has the same Neutrik XLR input jack). And again the HD6xx didn't work correctly (no sound at all). Now the guys from Sonore Audio got back to me and told me that they have checked the Jotu and SE and XLR are working fine?!?!? This is the part I really don't understand: if my headphone is working with the two other amps how come that it won't work w the Jotu (since they all have the same Neutrik input jack hence my thinking that the termination of all three should be the same, or)? So what am I missing? Btw: Haven't received the unit yet from Schiit Europe but I'm worried that I still can't use the balanced HD6xx (since they haven't found an issue). I asked Schiit Europe for the "correct" termination but they remained silent on that point. Your thoughts?