“I'll make this a short review and just make several points. - Excellent unit for beginners. You can use it so many ways, it's really an all-in-one. - Build quality is great, I haven't heard of any dead units. Some minor problems here and there but they are quickly resolved. - Superb support from the company. Fast and helpful emails. - Upgrade and resale potential. You can use this as a DAC...” --_Spanky_
“ Don't be mistaken this amp has a fantastic value for the money. If you need lots of power and speaker taps don't look further take this one. The only thing I regret is that the volume knob can do a harsh sound when you turn it to rapidly. ” --Puranti
“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
“ I have nothing to compare it it to. I guess you could go with what people have said about the D1 but with a little bit more s/n. Hopefully I can get a hold of more equipment so I can evaluate both ” --BLACKENEDPLAGUE
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...