I heard back from Rockna regarding their i2S pinout setting and matching to the Holo Audio i2S pinout options, and as
@audioarcher previously stated, Rockna instructs to use PS Audio i2S settings.
Further, they instruct to connect to the Wavedream NET's HD-Link 2 slot 2 that is configured with the PS Audio pinout. Slot 1 is configured for a Wavedream DAC.
Rockna referred me to this i2S Google document that lists pinouts used by many manufacturers in the industry.
If you look at the
Google i2S pinout document, you will find there are
three PS Audio pinout configurations. One in particular, “PS Audio NuWave Phone Converter” matches exactly to Holo Audio's ALT2 configuration. In fact, Holo Audio's ALT2 option is the
only one that exactly matches a PS Audio i2S pinout. The other Holo Audio options have pins 1&3 and 7&9 R&L reversed.
None of the other PS Audio i2S pinout configurations exactly match Holo Audio's ALT2 configuration (although some are close). I asked Rockna specifically which PS Audio i2S pinout is configured at the Wavedream NET's HD-Link2 slot, but I have not yet received a reply.
** EDIT 2/17/22 - Rockna instructs to use the HD-Link2 slot, and that HD-Link2's pinout most closely matches the Holo May DAC's ALT2 pinout.
So, select ALT2 pinout when using the Holo Audio May DAC with the Rockna Wavedream NET.
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