@Jason Stoddard for Jotunheim R, a couple of questions: Q1 is the performance of the balanced vs SE inputs identical? I have Bifrost Multibit currently, so would Bifrost2 running balanced out provide a significant improvement? Q2 what is the approx. input impedance of the balanced input? will these work well with Yggdrasil GS or would Yggdrasil A2 be more suited (if I go TOTL Yggdrasil)? Q3 is Jotunheim R a current source? in other words will having power on and no load attached make for instability?