ClumsyGuyI use it with a Bravo 2, which is the same device in s different case, and I find it takes the harshness out of the Bravo making it sound much better than it did using a Zorloo Zuperdac, and I like that little DAC. I found that it really smoothed it out overall. I also use the D10 with the Massdrop O2 amp, the Massdrop CTH, Little Dot MKII, and Aune X7s. It sounds great with all of them. Headphone used are Massdrop HD-6XX, Massdrop Hifiman HE-4xx, Hifiman HE-560's, Beyerdymanic DT-77 Pro 80 ohm. Finally, another outstanding quality of this DAC is that an iPhone or iPad connected via the Apple camera connection kit will power it, allowing you to charge your device at the same time that you are playing music through it.