More finds! Sorry had a typo in the previous post. The output resistors are 100k not 10k. I disconnected them and had no difference in volume level, so it doesn’t seem to be impedance mismatch related. I’m going to reverse-engineer the Griffin board completely and come up with a full circuit diagram and hopefully see what is going on here. Since my cable does get a noticeable volume increase, it may be the voltage on pin7 may act as a gain control. Only speculation right now, I need to do more tinkering with the dock.
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