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ZuperTube Desktop
Tiny Tube, Big Vibes
The USB-DAC Tube Amplifier
Say hello to the ZuperTube Desktop—your new pocket-sized partner in crime for all things music. This little wonder packs a punch, blending the warm, soulful sound of a tube amplifier into the smallest desktop USB-DAC you’ve ever seen. Whether you’re chilling at home or on the move, it’s got your back with USB, SPDIF Coaxial, and Optical inputs, so you can plug in and play from almost any device.
Crank up the quality with support for ultra-high-res audio—up to PCM 768kHz and DSD 22.5MHz in USB-DAC mode, or groove to Hi-Res 192kHz/24-bit tunes via SPDIF. And with Stereo RCA, 3.5mm unbalanced, and 4.4mm balanced headphone outputs, you’ve got options for every mood and moment. The ZuperTube Desktop is proof that big things come in small packages. It’s not just an amp—it’s your ticket to richer, warmer, and way more fun sound. Ready to turn up the vibe? Let’s go.
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Physical Interface
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USB-C input to your PC/Mac, Smartphone or Streamer
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SPDIF Optical input
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SPDIF Coaxial Input
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3.5mm unbalanced headphone output
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4.4mm balanced headphone output
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Stereo RCA Audio output
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USB 2.0 High Speed and USB Audio Class 2 standard
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Audio Format
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High Definition Audio PCM sampling frequency up to 768kHz (16x CD) for USB input
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High Definition Audio DSD sampling frequency up to 22.5MHz (8x SACD, aka DSD512) for USB input
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High Definition Audio 192kHz 24bit for SPDIF Optical or Coaxial inputs
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MQA (Master Quality Authenticated) Certified Renderer (2nd unfold)
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Bit-Perfect Hi-Res Lossloss music playback
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OS Support
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Plug and play for Android, iOS, Linux, macOS and Windows 10/11
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Output ​
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Stereo RCA - 2Vrms
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3.5mm single-ended output - 2Vrms
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4.4mm balanced output - 4Vrms
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Tube amplifier section based on JAN6418 vacuum tube design
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Audio Performance​​
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Superior sound quality with ESS Sabre DAC technology (9281ACPRO)
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SNR @ 125B (3.5mm out), 134dB (4.4mm out)
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THD+N @ 0.0004% (3.5mm out), 0.0006% (4.4mm out)
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< 2 ohm output impedance
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ID Design
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Matte black aluminum chassis
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Measured at only 80.5mm x 43.5mm x 29.5mm
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Weight at 126g
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Status LED indicator (Blue for idle or SD audio <= 48kHz, Red for HD audio > 48kHz, Magenta for MQA content)
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Input sources LED indicator (White) for USB, SPDIF Optical and SPDIF Coaxial
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Tube mode LED indicator (Amber)
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