“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 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
“It is brilliant, having been based on a OPA2134 as input amp that is wired to a TPA6120A2 as buffer (Current amp). It uses a TDA2030 as a rail splitter. Using a power opamp as a rail splitter has it's advantages, mainly you will notice bass on this amp is much more defined than the original sApII. It DEFINITELY will improve SNR if you use a better power supply than standard, standard...” --DaveLT
“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
“ 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:...