“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
“Package and Contents The MHd-Q7 comes in a plain cardboard box with closed-cell foam packing. Contents are minimal: you get the amp itself and nondescript 3.5mm interconnect and USB charging cables. Fair enough. Design Ortofon really knows how to make a good looking product. The MHd-Q7 really feels high quality with its clean and stylish...” --fonzler
“ ****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
“ The Hd-Q7 are Ortofon's desktop amp powered by a 16V power pack. It takes in a switchable single ended 3.5mm or L/R RCA unbalanced input at the back and provides 6.3mm or 3.5mm unbalanced output. The volume knob is probably the most prominent feature at the top. Dialling the volume knob is extremely smooth yet firm. There's no chance of accidentally turning the volume up...” --AnakChan
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...