“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
“I use the S.M.S.L. sApII Pro to drive 300Ohm Sennheiser HD600s and it performs really well. It delivers plenty of clean, flat power to drive my headphones with authority, just what a headphone amplifier should do in my opinion. There is not much information around but I would say the amp is designed for high impedance headphones. I do not recommend getting this amplifier to use with low...” --BorisH
“One channel of my Denon 250 pre-amp/amp set failed several times per listening session and my Arcam rDAC started failing as well. So I bought the SMSL SA-98 via eBay for a mere € 98,99 including transport (and a SMSL SD-1955+ DAC for even less). The trip from Hong Kong to Rotterdam took far less than from Rotterdam to nearby Utrecht. It's (switched) power supply is about the same size...” --REvandenBERG
“I bought my SMSL sApII on amazon.co.uk market place. The vendor was SHENZHENAUDIOUK, the item was shipped from China and I paid £32.39 (US $50 or €44). There was no delivery charge. Reasons for purchase: my Dell Vostro Core i3 desktop has integrated audio with slightly low output level. Amplification reveals some EMI noise. Previously, to have a clean output, I'd been using a FiiO E7...” --julian67
“ I didn't expect this little Chines guy to generate impressive sound. When it is pairing with DT990 - 600 ohm, Cello concerto of Britten superised me of its crisp sound and wide soound stage with enough volume. In comparison to many times expensive amp unit, I could not pinpoint its weakness against. I think anyone cannot easily buy this performance per this price...” --Joong
“ ****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
“ Not much info about the SAP-4S on the web, this was a purchase I made mostly based on curiosity; there's only a single review about it in English that seemed pretty positive so I went for it. Packaging is a nice little white box with relevant logos. When opened you're greeted by various neat accessories like a flat usb charging cable, protective leather case, silicon band, and well made 1/8"...” --kidcharlemagne
Technical indicators£º standard input interface analog stereo / coaxial / optical / USB (loop switch) Input Frequency: 44.1,48,96 KHZ/16/24BIT SNR:> 115db Dynamic Range: 105db Distortion: 1KHZ% 0.0007 Rated output: 1.8VPP Frequency response :20-20KHz (-0.2 dB) Total power
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...
Headphone amplifier built-in USB controller chip Burr-Brown PCM2707 Digital input receiver chip DIR9001 with: - This chip has better sound quality than the popular CS8412/4/6 commonly used in other DACs. It can play sound with much more detail and accuracy. Main DAC chip is Burr-Brown PCM1793 with: - 24bit/192kHz Sampling Advanced Segment Audio Stereo DAC - Dynamic Range: 113 dB and THD+N:...