“When I attended the Axpona Audiocon in April, I walked away with a huge smile on my face. This was the first time being able to listen to the world's best headphones and DAC/Amplifiers all in one place. It was a "kid in the candy store" type of moment going from station to station, popping on the likes of the HD800, HE-1000, Oppo HA-1, Astell & Kern AK240 and on and on... The list of...” --Hisoundfi
“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
“ ****Note**** As always, these are strictly my opinions. I try to present these products as honestly as possible and try to describe them as best as possible. As always, YMMV. ****NOTE**** FISCHER AUDIO MYSTIFY PORTABLE HEADPHONE AMP SPEC’S: Frequency “flatness”: +/- 0.5db Dynamic Range: 110 db Total Harmonic Distortion: 0.001% Intermodulation...” --LFF
“ Just had the Calyx Kong USB DAC/headamplifier home for two weeks, and I liked what I heard. Calyx Audio is a Korean brand, that for the time being make 3 different DAC´s, where the Kong i the smallest and cheapest model. So Kong is not King . The little Calyx Kong is cut out of a block of aluminium, so feels nice and heavy, weight 167 g. Cost around 135 euro. The...” --Larryonfire
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...
Frequency range: 10Hz-20kHz Amplitude-frequency responce (AFR) irregularity within the frequency range: 0.3 dB Dynamic range: 110 dB Harmonic distortions: 0.002 % Intermodulation distortion (CCIF) 0.006 % Interpenetration of channels at frequency 1 kHz: -73dB Rated input voltage: 0.5 Maximalinput voltage: 3.5 V Maximal output voltage at the non loaded output: 10 V Maximal undistorted power...