Hey Dave,
Did you ever make some OPTs to drive headphones? The problem I see is the range of the headphone impedances: 32 - 600 Ohms.
Tony
OPT for Headphone Amplifier
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- Posts: 56
- Joined: Sat Jul 25, 2015 9:50 pm
Yes, that's a big problem. You'd need a lot of taps... but, since secondary DCR has a negative impact on transformer performance, and because the output impedance range required is so large, I would think that it would be hard to make a transformer with a low DCR secondary for headphones. I know people do it... but from my perspective it's difficult to do it in a way that is low distortion and outstanding performance. I though Sowter makes some, as well as others like Electraprint.