Hi Tee,
I'm still learning also lah... Hehe...
Impedance matching is important... Try to get as close as possible. Most of the tube amp has 4 ohms, 8 ohms some even 16 ohms O/P, so that can match with difference impedance speaker.
Tks...
Yeah.... Tube amp for headphone, would like to know so that can oder the O/P trans, once is ready hope some of you can listen to it and give some comments...
Tks in advance