davidsh
Headphoneus Supremus
- Joined
- Oct 4, 2012
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Just looked at the he-adapter internals. If it is true that there is a 10 and 25 ohm resistor per channel, then judging from layout, it seems that the impedance seen by the speaker (using he-500) would be around 8.5 ohm. The output impedance from the headphones POV would be 25 ohm, I'd suppose. It would yield approx 2.2 dB decrease in volume (or a factor of 0.6). Anyway, the he-adaptor is definitely technically inferior to using robob's method, as it will alter output impedance.