IQaudio DAC Pro has an audio output with very high fidelity. It uses Texas Instruments PCM5242 DAC to achieve excellent signal-to-noise ratio from a Raspberry Pi 1 Model B +, 2, 3, 4 and 5, and supports balanced / differential output in parallel with phono / RCA line-level output, moreover it also includes a dedicated headphone amplifier.
DAC Pro provides two 3-pin headers (P7 / P9) that can be used by an optional XLR card to provide a differential / balanced output issued from XLR jacks over the USB / Ethernet ports from the Raspberry Pi.
Note
• see datasheets for more useful installation information.