new poem  dream  DAC & 300B tube  output stage

Acuhorn R2R T

Acuhorn R2R T

Absolute DAC & DSD The Most Class-A Big DHT Tube Stage

The Acuhorn R2R T absolute soundstage presentation with huge plane plate electron emission of type 300B tubes. A new poem dream about music. The Statement analog tradition and the great innovation technology pushing further now. Your senses impressions of Art. Special benefit DAC loaded FPGA Spartan 6 discrete R2R ladder. For all music file formats. Supports with audio device by USB audio or SPDIF. What makes it stand out and gives you the edge power supply by Vicor modules.

R2R ladder 28 bit resolution 384Khz dac by Soekris. Loaded FPGA Spartan 6 technology oversampling up to 3.072Mhz. Frequency range +0.1dB -1.0dB 20hz - 20Khz. Total harmonic distortion + noise <0.008%. Clock jitter RMS 0.8 pS typical. Resistors precision 28 bit 0.02% resistors. Signal to noise ratio 20 Khz bandwith 129 dB unweighted. Input SPDIF up to 24 bit 192 Khz. Input I2S PCM up to 24 bit 384 Khz. Input I2S DSD up to DoP128 and DSD256.

Autoselect between the USB audio device and SPDIF inputs with priority SPDIF. Manual switch of input selection SPDIF coax or optic. RCA single ended tube output: 2.8V RMS Zout 600 ohm.

Digital input USB Type B audio adapter Amanero combo384 compatible with Mac OSX®, Linux and Microsoft Windows®. Digital input optical Toslink. One analog outputs with volume control.

Optional stepped attenuators are the most preferred solution in high end audio. High quality precision 0.1% thin film Nichrome chip resistors.

Pure class-A single ended tube stage. Type 300B, PX25, PX4, 45, 2A3 power triode. Caddock High Performance Film Resistors. Separate dual mono power supply.

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.

technical specifications
input voltage mains autoranging 90-264Vac
maximum input power 40W
discrete R-2R sign magnitude DAC type
4 pin base tube socket U4A
directly heated triode type 5 Volt, 4 Volt or 2.5Volt
optional stepped attenuator volume control
3 signal input: USB audio and SPDIF coax and Toslink
1 audio output
internal cable OCC copper
terminal rhodium
weight 2kg
dimensions W 320 x D 320 x H 28mm

Acuhorn R2R T manual
Direct Stream Digital DSD article

  tube  tradition  the great innovation

  300B  DAC


Get in touch

Wojciech Unterschuetz
Gdansk Poland

Phone +48 737476346

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