For those of us who are constantly bathed in RFI by living near broadcast radio and TV antennae, being able to use a balanced 10 ft headphone cable makes an audible difference in clarity. I'm very glad that the Sonett and the Stratus both have a balanced transformer output.
Thanks for the detailed and thoughtful explanation, Donald. Having your input is what makes this thread valuable.
I'm not quite sure, actually, whether you've explained the SE input / balanced output 2 or 3 times now here. I might be confusing the Sonett thread with this one. Oh well. For those of us who can't read a schematic, it certainly helps to hear your lucid explanation again from a different angle. Thanks again!