What does the symbol below the RCA jack mean? It looks like RCA in and RCA out?

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danny87
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danny87
235
May 20, 2021
I figured it out. It's the same symbol as the ones on the back of the O2+SDAC DAC/amp. "On the back of the device, you'll see a single set of RCA jacks labeled with symbols for both input and output. When you're using the USB input, the RCA jacks act as an output from the SDAC" Should have been changed for the O2 amp as there is no such function. Guess they forgot.
(Edited)
jaxtrauma
1580
May 17, 2021
I don't recognize those either. Maybe one of our engineering friends can tell us? These are input only, so you got me. ;-) Maybe pos and neg? but the arrows are different
(Edited)