xDuoo XD-05 Bal DAC / headphone amp upgrade with Burson Discrete V5i opamp

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Post Info

When replacing stocks 1612 with Burson V5i D, I got a huge increase in sound. The scene and resolution improved.!! I purchase V5i with retailer Opamp audio (Moscow, Russia)

The System

Listening with

xDuoo XD-05 Bal · DAC / headphone amp: portable balanced DAC / headphone amp (battery, Bluetooth 5.1)
  • Frequency response: 20 Hz – 20 kHz ±0.5 dB (DAC); 10 Hz – 60 kHz ±0.5 dB (amp)
  • Output power (XLR / SE): 32 Ω 1 W / 1 W
  • Output voltage: RCA 2.0 V (3.5 mm line out)
  • Gain: +6 / +15 dB (plus bass boost)
  • Inputs: USB (PCM 768 kHz/32-bit, DSD512); coaxial / optical; AES; 3.5 mm aux; Bluetooth (AAC, aptX HD, LDAC)
  • Outputs: 6.35 mm SE headphone; 4.4 mm balanced headphone; 3.5 mm line out
  • DAC / chipset: 2x ESS ES9038Q2M; XMOS XU208; Qualcomm QCC5125 Bluetooth
  • Other: THD+N 0.0015% SE / 0.0009% bal @ 1 kHz; S/N 115 dB SE / 117 dB bal; 5000 mAh battery

[1] [2]

Burson

Burson V5i Opamp · Discrete opamp (single / dual) · current
  • Supply voltage: ±5 V / 10 VDC to ±16 V / 32 VDC (absolute maximum)
  • Gain-bandwidth product: 50 MHz (at 100 kHz)
  • Dual or single: dual and single (this post uses the dual)
  • Package: 11 mm wide × 11 mm deep × 7.3 mm high

[3] [4]

Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.

  1. xDuoo XD-05 Bal: apos.audio (retailer)
  2. xDuoo XD-05 Bal: hifigo.com (retailer)
  3. Burson V5i Opamp datasheet V1.0
  4. Burson V5i Opamp product page