Pro-Ject Pre Box S2 Digitial preamp and DSD DAC with MQA!
OK, so I have a unit in house. I have listened to this VERY small and capable DAC and am very impressed! Retail is $400, but it can be had for $350 most places.
The design uses the latest set of SABRE 32-bit DAC, filter and headphone chipset, featuring multiple digital filters, user selectable.
I have used it via Coax and USB input with DSD files and color me impressed! Are there better DACs? Yes, but for a LOT more money!
I have opened it up and even knowing that it was small inside, I was STILL amazed at HOW much they have packed into this 4"x4"x1.4" enclosure and what they have achieved!
I also listened with headphones via HiFi Man HE1000's and Lazuli Reference cable and the sound was also very good! The HP amp is not High Power, but will drive most moderately efficient modern headphones and certainly ANY IEMs!
"So Dan, how are you going to mod this LITTLE DAC?" Well, the answer, is that I am not actually going to do any work TO the DAC itself, but rather plan to build an external box to provide a MUCH cleaner and better DC supply and an improved analog stage, possibly unity gain, to add some body to the sound. It is VERY resolving, but perhaps a bit forward. I believe that a cleaner supply and the following analog stage I have in mind will treat this nicely.
I am envisioning a box that will be similar in size to the DAC, or possibly large enough for the Pro-Ject box to sit on top of the external box. Either way, the total combination will still have a small footprint.
I have an idea that I am going to pursue and we will see how it goes.
Please post here with levels of interest, ideas, suggestions and what you are looking for in terms of a total solution. I know that some have asked about balanced XLR outs and that is also possible.