iFi Nano iDSD Black Label is an upgraded Nano iDSD, improved for portable use and looks like the perfect high value dac/headphone amp for 2018. Nano BL is a high performance usb dac, able to decode all bitrates up to DSD256 files, allowing you to output music from your computer upsampled to DSD256 (many customers find this provides better sound quality). The usb connection also directly takes a usb OTG cable for an easy connection with iphones/ipad or android.
With the built in battery, nano BL is not just powered off usb, so it can provide the same performance with portable devices as it can with a computer. Nano BL has an upgraded headphone amp and a 2nd headphone out just for high sensitivity earphones. Nano BL can decode MQA files, for great sounding playback from Tidal.
There is a line out feature, to use as a desktop dac out to a stereo or speakers as well as two dac filter settings, so you can fine tune the sound. The usb input even has iFi's iPurifier usb power cleaner filter built in.
Headfonics.com 8.8 / 10 : I honestly can’t find fault with a device at this price point that can do as much as the Nano iDSD Black Label can...it is a bit of a steal to get IEMatch, decent levels of gain and power as well as a smooth analog type delivery with BitPerfect capability. Throwing in MQA is kind of like a selectively high-end cherry on a generally rather tasty cake.
Headfonia.com : iFi has delivered marvelous work with the the BL version of the Nano iDSD... this is an amazing DAC/AMP for the price... superb little device, for those who are looking for a nice DAC/AMP that can give a good amount of power for not extremely hard to drive headphones, and with a competitive price. If you also like to listen to your in ear monitors with these types of devices, I just can’t recommend it enough. It’s flexible, built to last, useful and compact. Most importantly, it sounds flawless for the money.
Video walk through from digitalaudioreview.net here.