Acuhorn R2R Streamer and DAC with FPGA Spartan 6 Discrete R2R Ladder High End

Description

Acuhorn
R2R
Streamer and DAC
BEST PRODUCT 2017
High Fidelity
Loaded FPGA Spartan 6 R2R Ladder DAC
3 signal input I2S by RPi, SPDIF Coax and Toslink
2 audio output R-2R direct and buffered
Black finish
ready to shipping immediately
shipping worldwide
delivery by courier to your door
technical specifications
input voltage mains autoranging 90-264Vac
maximum input power 20W
discrete R-2R sign magnitude DAC type
digital volume control
3 signal input I2S by RPi, SPDIF Coax and Toslink
2 audio output R-2R direct and buffered
internal cable OCC copper
terminal rhodium
weight 1,5kg
dimensions W 320 x D 200 x H 28mm
Positive feedback:
Acuhorn R2R Thanks a lot it is a remarkable DAC , I really feel the difference with other dac , simply fantastic. Perfect seller, beautiful and impressive item, many thanks
Acuhorn R2R I plugged the streamer into my home network and started listening sessions. I have to agree with Mr. Pacuła: you are an artist.
Acuhorn R2R So far, I was a fan of the CD format with my collection. R2R defeated all my ideas on this subject. The DAC did not leave anything to save from the CD player.
Acuhorn R2R To my surprise, this DAC is so vividly convincing to every recording. It does not depend on the audio file formats
Acuhorn R2R The DAC is amazing. Play music better than anything I listened to, better than the best DAC's over 12000 EUR
Acuhorn R2R I'm after a few hours of listening. The difference in sound is revolutionary (!)
Acuhorn R2R Excellent product. Very easy communication with seller everything perfect.
BEST PRODUCT 2017
High Fidelity
Review and Award
RED
Fingerprint in High Fidelity
For me the breakthrough was the amplifiers of Japanese company SPEC Shirokazu Yazaki. The same is true, as I think, with the Acuhorn amplifier. With the fact that here we can immediately see that we are dealing with something completely different. It's a sound that would very easily be described as "classic sound of tubes, SET". And it's not even 300B, and the rarer, extremely musical, triodes 45 and 2A3. RATE plays in a relaxed way, building huge space. This is a characteristic of power triodes, which is extremely difficult to repeat in other constructions.
The amplifier also builds a very reliable body of instruments. It does not cut them from the background, but it shows in the solid way. But this is the finite, clearly. Instruments interact brilliantly, primarily through space differentiation and in color. Because color seems to me most important. It shares with RATE the file player and DAC - the whole play is extremely colorful, but the colors of Dutch masters rather than Pop Art.
The point is that high tones are not stingy, and yet there is nothing missing in it. The whole is slightly retracted. So we get beautiful plasticity and high energy. But the absence of a rough attack and an annoying high frequency shows an image of analogue sound. The player is a good example of a "no harm" school.
Music played from the Ancient Audio AIR V-edition transport, via SPDIF input, had more energy, was better defined and more in action, was a clear drama. The DAC in R2R has similar characteristics, that is, it withdraws the apparent sources outside the line connecting the speakers and builds a credible space in our room, does not carry us instruments, and us into that space.
But at the same time, it is extremely resolution and more strongly highlights dynamic changes. Each of these elements is trying to reach the source of music, that is to the emotions, from the reflection on the message, on what we hear. The system does not attack us with information, but it distil them subcutaneously, smuggle in larger packages, so we do not catch on the so-called "detail split parts".
I would say that R2R together with RATE draw more assumptions and a message based on them, thorough analysis of them moving away. so to speak, the event horizon. It's all there is, but we have access to that, in less consciousness than unambiguous devices.
Summary
The Acuhorna system plays music in an extraordinary way. Sound is a phonograph record and the SET amplifiers. This is technology, very well controlled low bass and supreme calm. They build a huge soundstage - deep, surrounding listener, with the first plans behind the loudspeaker line. The amplifier sounds soft, but it's incredibly resolution.
This, apart from the SPEC amplifiers, is a device of this type that I would classify with a pure heart into a sophisticated high-end, where you do not have to prove anything. Have I said that it is a similar aesthetics like that presented by Kondo Overture II? So I say. New devices produce music in which the heart is the most important postulates of analog fanatics: firstly music, secondly emotions and thirdly the need to distinguish. Award
RED
Fingerprint.
Acuhorn R2R
, a tiny modern design that twins with the RATE amplifier. Just to get closer to the recovery of music playing as it was at the beginning. Today there is no better way for digital to analogue converter than to load to the programmable logic with as much computing power. To split the signal into millions of particles and unload onto a discrete ladder of analog resistors. It's like a stylus diamond traveling through a vinyl groove.
features
R2R ladder 28 bit resolution 384Khz dac by famous Soekris.
Loaded FPGA Spartan 6 technology oversampling up to 3.072Mhz.
Frequency range +0.1dB -1.0dB 20hz - 20Khz.
Total harmonic distortion + noise <0.015%.
Signal to noise ratio 127dB A weighted.
Automatic input selection I2S or SPDIF.
R-2R direct single ended output: 1.4V RMS Zout 625ohm for high impedance input transformer or input tube amplifier.
Buffered single ended output: 2V RMS Zout 10ohm for any input amplifier or headphones >300ohm by adapter cable.
Server runs on Raspberry Pi of single board computers.
Low Latency and Real-Time Audio kernels.
DXD PCM 384Khz and support DoP for DSD128 to 192KHz output via I2S interface.
Compatible with all formats music: MP3, FLAC, WAV, AAC, ALAC, DSD.
UPNP\DLNA, Airplay, TIDAL, Qobuz, Spotify, Google Play, Squeezelite and Web-Radios, etc.
Controlled wifi from remote running on smartphones, tablets, notebooks.
For control playback and settings use any audiophile music player for RPi.
Power supply is the best Vicorpower modules.
DC-DC converters provide high power density and low noise High frequency Mhz switching.
Advanced power processing in a small size.
Autoranging 90-264Vac network voltage, for worldwide use.