Yeah, I don't want to blow a pair of tango xe60 3.5s...
What's the situation I want to avoid with the resistors in parallel? Most planar headphones are 30-60ohms of impedance, right?
Conversely, I can test headphones on my dad's push pull triode el34 amps with utc ls transforners? They have taps for 1,2,4,8,16,32 all the way up to 300ohms on the secondaries
You have to match the load impedance, in this case the HE6-SE is a 50 ohm load, with the output transformer, say 8 ohms tap on your amp. So to create an 8 ohm load you have to parallel a 10 ohm resistor with the 50 ohm HE6-SE (parallel resistor calculator https://www.allaboutcircuits.com/tools/parallel-resistance-calculator/). If you don't match the load impedance with the amp's output impedance, the transformer will act like an inductor which it isn't and will eventually arc.
Also don't turn this amp on and live it on without a load.
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