The NuPrime uDSD, a significantly advanced hi-resolution USB-powered portable DAC, connects your personal computer's audio to your home stereo, desktop sound system and headphones. The uDSD features direct DAC out, i.e., fixed-analog out, in order to provide better overall sound quality, and in...

The Celsus Gramo One is a reference-grade open-back* in-ear headphone that sits comfortably on the outer ear. One's first - and enduring - impression is of an overwhelming, three-dimensional audio experience that can fairly be described as a virtual live event. The proprietary 16 mm Celsus...

As an ultimate high-performance headphone amplifier, the HA-200 starts out with Class-A design and then combines that with a constant current output topology. Furthermore, when it is operated in classic Stereo Mode it also offers true Single-Ended (SE) output performance. As a valuable plus, two...