“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
“miuaudio MRA DIY Amplifier Review and Build Log by TrollDragon Back in February I contacted Ivan Lai of Miu-Tech in Hong Kong to review a few of their products. I was generously sent a pair of amplifiers for review, a nice little Do It Yourself portable and a Vacuum Tube Hybrid desktop. This review is for the MRA DIY amplifier kit, it is an M47 style amplifier with the...” --TrollDragon
“miuaudio MKTP1 Vacuum Tube Modular Preamplifier (EH 6922 tube) Review by TrollDragon In my previous review for Miu-Tech of Hong Kong, I built and reviewed their MRA DIY Portable Amplifier which is a great little DIY amplifier kit. In this review however, I am taking a look at their hybrid headphone and preamplifier, the MKTP1. A rather large box for a tiny little...” --TrollDragon
“Introduction: Here we have MIU Audio’s or Miu Tech’s semi new MRB headphone amplifier. It is in the $100+ USD price range. IT is an intermediate level DIY kit where you put all the parts together. Surface mounts are already done. The op amps just pop in. http://pandatechreview.com/1/post/2013/09/miu-audio-mrb-diy-headphone-amplifier.html Please note that the 5 small image previews before...” --bowei006
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...