This is the schematic that corresponds to version 1.0 of my design. It's divided into 4 sections: the USB section (which takes USB signals in, and outputs I2S Data), the I2S DAC (which outputs a balanced audio signal), the output opamp power supply section, and the opamp circuit itself, which provides the output.
USB Section

I2S DAC

Opamp Power Supply

Opamp Audio Output

drewrisinger
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