Hello All,
I have USB cable with a power barrel/jack plug on the other end and tried plugging it from my PC into the SEG. Surprise Surprise it worked and sounds ok!
It's a bit late now to do any listening comparison at higher volume, I'll try tomorrow.
Having thrown "USB output voltage" on Google, it came back as a definite 5V, this is a hefty drop from 12V me thinks.
Has anyone else tried this?