As an FYI if you have attenuation in the converter box there are inline resistors, however they are extremely high quality non-inductive wirewound resistors. The resistors are
directly in the signal path so you will most certainly hear a difference between low and high quality parts. No detrimental inductive sandcast/metal oxide here. Please feel free to shoot me any questions you have. It may be a "black box" but I will tell you everything that is happening inside. I'm happy Thanatos is enjoying his unit as many others are.
Agreed, you want a thicker gauge for the Susvara. Just like people would think you are crazy for running 26AWG to speakers, it doesn't make sense here either. Double runs at least. HE-6SE as well. Your amp literally sees them as speakers, so treat them as such.