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RE: Harman Kardon TA5000X output transformers

I measured a pair of these (FT4725698) a while ago - 4120 Ohms loaded with 8 Ohms, a little lower with 4 and 16. They were among the best transformers I've seen - impedance and phase pretty flat to 100 KHz. A little more primary inductance than a Stereo 70 OPT, and a third of the leakage inductance.



Edits: 05/09/16

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