I bought the iFi Nano as a second source for my headphone collection. I was mainly attracted by the ability to be able to stream music from my phone and it certainly hasn’t disappointed. Build quality is top notch and the specs are very impressive . I would quite happily use the iFi as my main source as it sounds every bit as good as my two box desktop solution.
I am using it to power a pair of HiFiMan Sundara headphones. I find that I only need to use about 25% of the available volume. Trying to run them directly from my phone was futile, so this little box has done the trick. It is also nice to be able to support a UK Hi-Fi company. I honestly don’t think that there is a better solution around at the moment for the money.