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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.
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
acuhorn R2R + RATE review highfidelity
acuhorn R2R manual
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 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 provides 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
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