“This review is based on matching the Mini X with Hifiman He-500 Headphones. You may be reading this review, unsure what to make of this Amp, asking how can a cheap sub $200 amp offer the power needed for an expensive Headphone such as the Hifiman He-500? If you have done your homework you will find this is the stereo amp everybody is...” --fluidz
UPA-200 represents a true breakthrough in audiophile-quality amplification. At last, a truly affordable stereo power amplifier that can satisfy the most discerning aficionado, and at the same, is affordable to anyone with a desire for real quality. Our advanced engineering and design techniques have resulted in an amazing new amplifier. Its rock solid performance and affordable price point...
Audio gd's ACSS headphone amplifier, the C-2, has the refinement of headphone amps costing 4X as much. The Audio gd C-2 comes with ACSS and RCA inputs, high quality Neutrik headphone socket, preamp out, gain switch, input selector, preamp / headphone amp switch,and zero feedback discrete circuit.