“ Analog Squared Paper is small business run by Kageyuki Shikada. He makes each one of these amps by hand and they're effectively made to order. I won't belabour the specs and details of this amp as ianmedium has done a wonderful job at covering all of that in the Analog Squared Paper thread and in his review of this product. But I'll get into what this amp has done for me. ...” --AnakChan
“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
“ The TUR-06 is the smaller brother of the TU-05b reviewed here. This hybrid tube amp was added to the offerings of Analog Squared Paper earlier this year around late January 2013. The differences between the TUR-06 and the TU-05b are :- Hybrid Tube/Transistor Amp 482g (vs 1kg for the TU-05b) 2x1U4 (1T4) estimated price to be USD$600 vs $1070 for the...” --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...