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2016. December
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Formula referencia D/A konverter

Formula  referencia D/A konverter
  • Formula  referencia D/A konverter
  • Formula  referencia D/A konverter
  • Formula  referencia D/A konverter
3 890 000 Ft3890000

The Formula Dac is the first in the aqua - acoustic quality’s production to show a proprietary D/A conversion system, that we name Optologic Dac. This conversion system follows the same multibit technology (already used in the previous world acclaimed dacs such as La Voce and La Scala) but with a discrete R2R resistors ladder instead of Burr Brown PCM1704 dacs.

Technology

Galvanic and magnetic isolations are implemented between the FPGA and the four branches of the R2R ladder converter. This creates complete isolation of all digital circuitry - including the clock - from the analogue section for a pure clean ground plane. It also plays the main role in the differential management of the R2R ladders, achieving perfect symmetry between the counter-phase halves. The result is the highest tonal contrast and naturalness never heard before from digital sources.

The Formula Dac uses no digital filter or any other compensation, relying instead on maniacal attention to each sub circuit. The analog and digital power supplies are executed purely discrete by extensive use of BJT, Mosfet, Jfet and ultra-fast diodes. Passive parts were selected not just for the best sonic result but also for their top quality, longevity and reliability. With the exception of six superior quality electrolytics, all other caps are Tantalum, solid-polymer OS-CON and double-metalized MJP. The signal path itself is direct-coupled and free of all capacitors. The two output stages (one single-ended, one transformer-coupled balanced) use discrete BJT and JFet with metal-film resistors. All the electronics parts show an ultra low RF noise.

    • Sample Rates Supported
       
       
       
      Asynchronous USB (High Speed)
      Digital Receiver
      AQlink (I2S bus)
      Digital to analog conversion type
      Oversampling factor
      Analog Conversion method
       
      Digital inputs
       
       
       
       
       
       
       
      Analogue Outputs
       
      Output Impedance
      Load Impedance
       
      Frequency Response
      THD + N
      Main processor
      Control connectors
      Front Panel
      Power Consumption
      Dimensions
      Weight
      Front finish
      Case finish
      Performance characteristics
      AQlink / I2S serial bus  - USB PC Audio : 24 bit / 384 Khz
      DSD/64 & DSD/128
      S/PDIF - AES/EBU : 24 bit / 192 KHz
      Supports DSD via DoP on all inputs
      USB Type B
      PLL (phase locked loop) technology 128 or 256 FS selectable
      LVCMOS level
      Proprietary Optologic DAC
      1x
      Pure R2R ladder - FPGA (Field Programmable Gate Arrays)
      based digital decoding without digital filter
      - RJ45 AQlink (I2S serial bus) - 24 bit / 384 KHz - DSD/128
      - BNC coax (S/PDIF) 75 Ohm  -  24 bit / 192 KHz - DSD/64
      - USB port  -  24 bit / 384 KHz  - DSD/64 & DSD/128
      Modular input:
      - AES/EBU balanced 110 Ohm -  24 bit / 192 KHz - DSD/64
      - RCA coax (S/PDIF) 75 Ohm -  24 bit / 192 KHz - DSD/64
      - AT&T (ST Fiber) -  24 bit / 192 KHz - DSD/64
      - Optical TOSLINK -  24 bit / 96 KHz
      UNBAL 2 RCA Output 2.4 V RMS
      BALANCED ( passive transformer's symmetrical ) 2 XLR Output :
      3.8V RMS
      10 Ohm RCA - 600 Ohm XLR
      10 kOhm (min.) RCA - 600 Ohm XLR
      20Hz to 22kHz +0.5dB/-0.5dB
      <0,016% 1KHz -10dB
      STM-ARM microcontroller
      RS-232 D-SUB 9-pin connector
      Power, phase invert, mute, input switch, RC5 remote sensor
      100-115V / 220-240V; 50 or 60Hz - 82VA
      ( W x D x H ) 450 x 380 x 100 mm
      9 kg
      Satin Alu Silver or Satin Black
      Grey Nextel powder coated
  • Cikkszám
    unas_949473
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