I2s DSD

I reached out to Mola-Mola and GTT Audio essentially asking if there could be a path to add at least I2S to the Makua DAC module, like the Tambaqui,  along with dip switches or App programming to configure I2S compatibility for use with various I2S disc transports, including SACD such as PS Audio PST.  I thought it probably a remote possibility with too few potential buyers but thought best to get direct answer.

I received a negative response from both plus opinion from both that transmitting SACD layer unencrypted violates Sony patent and opens up possibility of litigation. Additionally response indicated that not only must "have priority encryption to work ONLY within the same brand transport/dac" or open to large risk.

They are aware that some companies have done so, but does not appear, for now, that Mola-Mola will do so.

I believe Sony patent is near expiration on SACD, but there may be amplifying related protections on this and/or various expiration periods worldwide.

In the world of litigation exposure, I can appreciate their conservative position on this isssue.  I do not have a PST, nor have I posed the question to PS Audio.

I will follow this thread to see what you and others further contribute on this.

@aswill thank you for a great reply, looks like we're on the same mission. Seems that you confirmed my suspicions that the PS Audio SACD transport will not "handshake" with other DACs, and other high end DACs are not allowing it. Which really is a shame.

Is it the case that patent rights etc are still hindering development and employment of DSD? If so, very sad. We are soon in 2022.

@lordmelton,

I believe PS Audio PST is handshakable with some other DACs such as Holo May and, I believe, Denafrips, and PS Audio's DirectStream DAC.  There may be others I am not aware of yet.   I only contacted Mola-Mola, and my posting above reflects their position on this currently.  I think it is the case that other high end DAC manufacturers with I2S inputs would need to be individually contacted and/or tested with PST SACD for knowing their compatibility.