TwoEyedJack
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- Jun 2, 2022
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Hello, I while reading some Realtek DAC datasheets (used in computer motherboards such as the alc887 or alc 1200/1220) i noticed that many of them have different have a high output impedance on their rear line out usually around 150-200ohm and a lower one on the amplified output that are normally used for the front panel headphone connection. I suspect the frequency response and power handling of the front and rear Connections should also differ, even though I have read that some motherboards omit to connect the headphone output (P-OUT) anywhere(i guess they just swap the output between front and rear I/O depending on whether there is something connected on the front, there are however some motherboards/drivers that allow you to have audio outputted both from the front and rear at the same time, which probably use the headphone output.)
My question is, how can people get away with plugging in their 32ohm headphones into the 200ohm rear line out output, wouldn't that be similar to shorting the output stage ?
My question is, how can people get away with plugging in their 32ohm headphones into the 200ohm rear line out output, wouldn't that be similar to shorting the output stage ?