R2R performance for TA-32

The xDuoo R2R DAC Card is designed for listeners who want the warmth and texture of vinyl without giving up modern digital convenience. Built on a discrete resistor ladder architecture with FPGA compensation, it’s all about natural tonality, silky mids, and a sound signature that feels alive. Whether you’re running it with the XD05 Pro or the TA-32, it brings a uniquely musical character that measures just as well as it listens.

Mellow, vinyl-like sound

The R2R DAC card leans into a sonic character that feels organic and familiar: smooth highs, warm mids, and bass that feels round. It’s the sort of sound that makes long listening sessions easy, pulling you in with a more human and less clinical presentation.

Precision resistor ladder design

At its core is a 32-bit R2R resistor network made from 128 precision thin-film resistors with 0.1% tolerance and low temperature drift. Each channel runs on its own independent circuit, switched by eight 64-channel analog chips. The FPGA applies a 57-bit accumulator algorithm that corrects timing and phase errors, delivering accuracy alongside musicality.

Native DSD decoding up to DSD512

No need for operating system upsampling tricks. The hardware itself natively decodes PCM and DSD signals, up to DSD512. With unified timing management and careful clock re-conditioning, the card keeps left and right channels phase-locked and jitter extremely low. 

Product highlights

• Discrete 32-bit R2R resistor ladder DAC with FPGA compensation
  
• Independent left/right channel circuits
  
• 128 precision thin-film resistors with 0.1% accuracy
  
• FPGA 57-bit accumulator algorithm for precise decoding
  
• Native PCM and DSD decoding up to DSD512
  
• Unified timing management for low jitter and stable phase
  
• NOS (No Oversampling) mode for natural, vinyl-like sound
  
• Compatible with XD05 Pro and TA-32 amplifiers
  
• Balanced and unbalanced output options with high power delivery
  

Specs

• XD05 Pro
  
  • Unbalanced output power: 2000mW (32Ω, THD+N<1%) / 240mW (300Ω,
  • THD+N<1%)
    
  • Output impedance: <0.2Ω
    
  • Peak voltage: 23.8Vp-p (Turbo)
    
  • Frequency response: 20Hz–20kHz (±0.5dB)
    
  • Crosstalk: >80dB
    
  • THD+N: 0.009%
    
  • SNR: ≥111dB
    
  • Balanced output power: 2000mW (32Ω, THD+N<1%) / 930mW (300Ω,
  • THD+N<1%)
    
  • Output impedance: <0.4Ω
    
  • Peak voltage: 47.2Vp-p (Turbo)
    
  • Frequency response: 20Hz–60kHz (±0.5dB)
    
  • Crosstalk: >100dB
    
  • THD+N: 0.004%
    
  • SNR: ≥115dB
    
  • AUX OUT: 1.0V, THD+N: 0.009%, SNR: ≥111dB, Crosstalk: >80dB
    
  • BAL-LO: 2.0V, THD+N: 0.004%, SNR: ≥115dB, Crosstalk: >100dB
    
• TA-32
  
  • Unbalanced output power: 2250mW (32Ω, THD+N<1%)
    
  • Frequency response: 20Hz–20kHz (±0.5dB)
    
  • Crosstalk: >67dB
    
  • THD+N: 0.01%
    
  • SNR: >104dB
    
  • Balanced output power: 2250mW (32Ω, THD+N<1%)
    
  • Frequency response: 20Hz–60kHz (±0.5dB)
    
  • Crosstalk: >67dB
    
  • THD+N: 0.03%
    
  • SNR: >106dB
    
  • AUX OUT: 1.0V, THD+N: 0.0038%, SNR: 96dB, Crosstalk: 100dB
    
  • BAL-LO: 2.0V, THD+N: 0.0045%, SNR: 104dB, Crosstalk: 116dB

What’s included

• xDuoo R2R DAC Card
  
• Documentation