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ZuperDAC Ultra
The Smallest USB-DAC Tube Amplifier

ZuperDAC Ultra is the smallest desktop USB-DAC Tube amplifier that fits your everyday needs to enjoy wonderful music. Don't be fool by its tiny size, it supports different audio input sources ranging from USB, SPDIF Coaxial and Optical inputs. In USB-DAC mode, it supports audio content up to maximum PCM 768kHz and DSD 22.5Mhz sampling frequencies. You can also enjoy Hi-Res 192kbit 24-bit audio content by connecting to its SPDIF inputs. There are different audio output options ranging from Stereo RCA, 3.5mm unbalanced headphone and 4.4mm balanced headphone outputs. 

ZuperDAC Ultra adds another dimension to your listening experience by including a Tube amplifier section. You can select the Tube mode or Bypass mode easily through the front panel button. Unlike other Tube amplifiers which are bulky and hot, we use the Korg NuTube 6P1 Tube design which won't burn your fingers. 
Physical Interface
  • USB-C input to your PC/Mac, Smartphone or Streamer
  • SPDIF Optical input
  • SPDIF Coaxial Input
  • 3.5mm single-ended unbalanced headphone output
  • 4.4mm balanced headphone output
  • Stereo RCA Audio output
  • USB 2.0 High Speed and USB Audio Class 2 standard
Audio Format
  • High Definition Audio PCM sampling frequency up to 768kHz (16x CD) for USB input
  • High Definition Audio DSD sampling frequency up to 22.5MHz (8x SACD, aka DSD512) for USB input
  • High Definition Audio 192kHz 24bit for SPDIF Optical or Coaxial inputs 
  • MQA (Master Quality Authenticated) Certified Renderer (2nd unfold)
  • Bit-Perfect Hi-Res Lossloss music playback
OS Support
  • Plug and play for Android, iOS, Linux, macOS and Windows 10/11
  • Stereo RCA
  • 3.5mm single-ended output - 
  • 4.4mm balanced output - 
Audio Performance​
  • Superior sound quality with ESS Sabre DAC technology (9281ACPRO)
  • SNR @ 120dB
  • THD+N @ 0.0003%
  • < 2 ohm output impedance
ID Design
  • Matte black aluminum chassis
  • Measured at only 80.5mm x 29.5mm x 43.5mm
  • Weight at 126g
  • Status LED indicator (Blue for idle or SD audio <= 48kHz, Red for HD audio > 48kHz, Magenta for MQA content)
  • Input sources LED indicator for USB, SPDIF Optical and SPDIF Coaxial
  • Tube mode LED indicator
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