>>2947084
mmmm so if i get what you're saying then a digital audio interface might use split-bobbin not just for cost-cutting and space-saving reasons but also for common-mode noise rejection. but then an analog audio rack unit might have a toroidal transformer because, although line-level audio doesn't take that much power, you might want plenty of headroom and low impedance in the bass frequencies (going off of what a less advanced AI told me months ago). the type of split-bobbin that would fit in a single rack unit (1U) would be like 9-15 watts whereas toroidals are like 30-36W.