Firstly, we appreciate your patience - customer word of mouth from people like yourself we truly appreciate. It has led to strong demand for the nano iDSD - thanks to you all.
So we apologise for the initial wait you have just experienced. Thankfully it is not months and months!
Secondly, DoP is the industry standard for DSD to be transferred natively" That is, DoP does not carry out any format conversion, this transmission protocol ensures the USB Audio Data Package maintains the integrity of the DSD file as it remains unchanged.
Of course upon entering the actual DAC, one should also insist that the DAC itself INTERNALLY does not manipulate the data (as some DAC chipsets convert to PCM etc). In this regard, the nano iDSD ensures the DSD file remains DSD internally. Hence, 'True Native.'
Tech Background on SDIF-3 (not SPDIF!)
DoP was devised for PCs as the original protocol is to transmit DSD is called SDIF-3: (not SPDIF bty)
This transmission standard is NOT supported by any current PC based hardware nor is it supported by iOS devices. So this is a non-starter for the real-world of computer audio users.
In 2012, to work around this limitation in order to transmit DSD over standard USB Audio Links, DoP was developed by a number of Companies supporting DSD.
DoP uses Standard USB audio as a transport for the original DSD Data. The DSD data is NEVER processed nor altered, it is simply placed into USB Audio packages and recovered on the other end.
The Output Data from DoP decoding is in effect SDIF-3 Data - simply making it electrically compatible with SDIF-3 produces a true SDIF-3 Output that is a perfect replica of the original DSD/SDIF-3 data at the recording (unless processing was applied in the studio).
Yup, iDSD uses SDIF-3 (not SPDIF)
You will be pleased to know that internally, when a DSD signal is rec'd, the iDSD uses SDIF3 to carry the signal throughout.
So as you can see, the nano iDSD has serious technology going on beneath its aluminium chassis to ensure the sound quality is the very best that it can be.
Interestingly, there seems to be more misunderstanding in the West (while Japanese customers seem to be much more knowledgeable on the finer points of DSD-probably thanks to Sony et al).
We shall therefore produce a whitepaper covering these aspects in a few weeks. It will be published in the FaceBook tech notes section.
thanks for the clarification...those here who are interested in DSD probably know the difference between spdif and sdif-3, but it's good education nonetheless...i have an idsd coming in the next few days and am excited to hear what this little guy can do.