Just bought one of these for use with my mobile devices (phone, Surface Pro 4). First impressions are pretty damn good. Using it to drive a pair of original Astro A40, which have an impedance of 48Ω. Can immediately tell that the Zx I have in my PC wasn't up to the task despite having a...
Audio Science Review has conducted a test of on-board sound from a Hewlett Packard Z series laptop and matched it against an external Topping NX4 DSD portable headphone amplifier and DAC to determine if it is an upgrade from the on-board sound. Although the on-board sound never distorted, the...