I added a W4S Recovery with the iFi power supply this morning. I am using it for the DAC module in my Violectric V281 amp. Since I can switch back and forth between the inputs with the remote control of the V281 amp, I can easily compare the two DACs. The Schiit Gumby and the V281 DAC module. While the W4S did virtually nothing for the Schiit DAC that already has a great re-reclocking USB circuitry, the V281 DAC did benefit quite a bit from the W4S Recovery box.
If before the two DACs were a drastic difference across the board and very apparent, now the V281 DAC module sound quality is within a cat whisker of the performance of Gumby. Just goes to show how much we are leaving on the table with USB inputs if we don't address the USB stream properly.
For the money, the W4S is a very big upgrade for any DAC that can benefit from a cleaner, re-clocked and buffered USB stream.
