As @tk21 mentioned, adding the Bridge II to your DS Dac might be the best option. This is made specifically for your DAC and is probably the best value option.
If you are looking for something that will work with other DACs, the BlueSound Node 2i is a great value although it may not be quite up to the standard set by your DAC.
Along with the other excellent suggestions here, I would check out the Sonore products. The OpticalRendu, in particular, offers outstanding performance assuming you are connecting to a USB DAC.
If you are looking for something that will work with other DACs, the BlueSound Node 2i is a great value although it may not be quite up to the standard set by your DAC.
Along with the other excellent suggestions here, I would check out the Sonore products. The OpticalRendu, in particular, offers outstanding performance assuming you are connecting to a USB DAC.