ParasoundDAC-2000usedParasound DAC-2000 Ultra - World Class R2R DACRare opportunity to acquire this is outstanding DAC, which was made in USA, and is still considered one of the finest DACs available. This is the 19" faceplate model (SN 605512631) in excellent c...875.00

Parasound DAC-2000 Ultra - World Class R2R DAC [Expired]

no longer for sale

Rare opportunity to acquire this is outstanding DAC, which was made in USA, and is still considered one of the finest DACs available.   This is the 19" faceplate model (SN 605512631) in excellent condition.   One minor nick on the top of the faceplate as shown in the photo.    

Based on the Ultra Analog discrete ladder DAC chip - the legendary Ultra Analog D20400A.  This DAC module was used in the flagship products from Levinson, Classe, Spectral, Sonic Frontiers, Threshold, and Parasound. 

Ultra Analog desinged the D/AC 2000 Ultra for Parasound incorporating lessons learned from their involvement with prior flagship DACs.  I've owned the Classe DAC-1 and heard others.  Overall, this is my favorite UA based DAC.

The rest of the chipset includes a Pacific Microsonics digital filter the PMD100 to decode HDCD and the Ultra Analog AES21 custom input receiver.

4 digital inputs including: Toslink, Coax. ST Optical, and AES EBU.  Analog outputs are both balanced XRL and single ended RCA.

From the Parasound website:


  • Four digital inputs: ST optical, AES/EBU, TOSlink, and Coax.
  • Balanced analog outputs
  • Low jitter UltraAnalog receiver
  • UltraAnalog dual 20 bit DAC
  • HDCD process decoder
  • Two separate Toroid power transformers
  • Regulated power supplies
  • Polarity inversion switch
  • Switchcraft XLR connectors
  • De-emphasis circuit
  • FR4 glass circuit board
  • Heavy-duty chassis
  • Gold-clad contact precision relays
  • Precision resistors and capacitors
  • Gold-plated audiophile jacks
  • Custom designed removable IEC AC cord
  • Made in the USA
  • Adapter available for 2 rack space mounting


  • Frequency Response: 
        DC - 20 kHz, +0/-.5 dB
  • Signal to Noise Ratio: 
        > 108 dB
  • Channel Separation: 
        > 104 dB @ 20 kHz; 
        > 110 dB @ 1 kHz
  • Total Harmonic Distortion: 
        < 0.0015% @ 1 kHz Full Scale Output 
        < 0.0008% @ 1 kHz 20 dB
  • Output Phase Linearity: 
        +/- 0.1 deg Typical
  • Maximum Jitter: 
        < 40 picoseconds RMS, (10 Hz 40 kHz) using 
        selected low jitter Custom UltraAnalog 
        AES 21 Digital Interface Receiver
  • D-A Converters: 
       UltraAnalog DAC 20400A Dual 20 Bit Digital to Analog Converter
  • Oversampling Rate: 
        8 X (352.8 kHz @ 44.1 kHz)
  • Digital Input: 
        32 kHz, 44.1 kHz, 48 kHz; SP/DIF and AES/EBU
  • Digital Filters:
        PMD-100 High Definition Compatible Digital Process Decoder
  • Absolute Polarity: 
        0 deg or 180 deg switchable
  • Digital Inputs:
    • Coaxial: 
          75 Ω RCA (unbalanced)
    • AES/EBU: 
          110 Ω XLR (balanced)
    • ST Fiber Optic:
          AT&T Standard (820 nm typical wavelength)
    • TOSlink Fiber Optic:
          EIAJ Standard (660 nm typical wavelength)
  • Outputs: 
        Unbalanced Analog Line Out: 2.75 V nominal, 600 Ω 
        Balanced Analog Line Out: 5.5 V nominal, 1.2 k Ω
  • Power Requirement:
        120 V, 60 Hz, 18W; may be re-wired for 220 - 240 V, 50 Hz
  • Dimensions: 
        19" W x 3" H (3 5/8 with feet) x 13 1/8" D
  • Net Weight: 
        12.5 lb.
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