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Atom DAC+

DACs


$109

In Stock

  • US
  • EU
  • UK
  • AUS
  • Covered by our 2-year transferable warranty

ATOM, STACKED

Atom DAC+ is built to pair with the enormously popular JDS Labs Atom Amp, now with even higher performance, both USB and TOSLINK inputs, and our latest upgradeable XMOS based firmware with UAC2 support and UAC1 fallback*. Atom DAC+'s subtle light ring glows when in use, automatically powers down during inactivity, and wakes up instantly and silently. A dedicated transformer ensures mains isolation. Stack Atom DAC+ with your Atom Amp and enjoy!

Features

MEMS OSCILLATOR

Atom DAC+ is clocked by 45/49MHz MEMS oscillators with ±25ppm frequency stability, delivering minimal jitter.

UPGRADEABLE FIRMWARE

Atom DAC+'s XMOS based firmware configures and manages all functionality, with DFU support for future updates.

UAC2 AND UAC1

Atom DAC+ supports up to 32/384kHz PCM over a custom XMOS XU208 based UAC2 engine. While we claim no measurable superiority of high sampling rates, UAC2 and ASIO support satisfy your pursuit of bitperfect listening. UAC1 fallback* is activated when using a USB 1.1 hub or isolator.

EXTERNALLY POWERED

Atom DAC+ is powered by a perfected supply network, with an external AC transformer and 10 regulators that ensure consistent rail voltage and super low ripple.

AUTOMATIC STANDBY

Atom DAC+ automatically enters standby after 15 minutes of inactivity, powering down its light ring and D/A circuitry, and audio wakes up silently and instantly.

DIFFERENTIAL SUMMING I/V OUTPUT

Differential output of an ES9018K2M DAC is paired with our unique, DC coupled, precision tuned I/V converter with three stages per channel, or six NJM opamps in total.

Specifications

DAC Performance

  • Frequency Response, 20Hz-20kHz +/- 0.12dB
  • SINAD @ 1kHz, 20-22.4kHz 112 dB
  • THD+N, 20Hz-20kHz < 0.0004%
  • SNR, 20Hz-20kHz > 117 dB
  • IMD CCIF, 19/20 kHz -6 dBFS -111 dB
  • Noise, A-Weighted -109 dBu
  • Dynamic Range, AES17, A-Weighted > 120 dB
  • Linearity Error -90 dBFS -0.01 dB
  • Crosstalk, 1kHz, 100k Input -104 dB
  • USB Jitter Components @ 12kHz -131 dB
  • Maximum DAC Line-Output, 100K 2 VRMS
  • PCB Stackup 4 Layers

Dimensions

  • Case Dimensions 5.0 x 5.3 x 1.4 in
  • Weight 8 oz

Data Support

  • Audio Formats (USB) 16/44.1kHz thru 32/384kHz PCM
  • Audio Formats (TOSLINK) 16/44.1k thru 24/192k PCM
  • USB Interface UAC2 with UAC1 Fallback*
  • USB Driver OS Support Windows 7/8/10, MacOS, Linux, Android, iOS

Connectivity

  • Digital Inputs USB and TOSLINK
  • Line Output RCA

Packaged Items

  • Atom DAC+
  • 15VAC Power Adapter
  • 3ft USB Type A to Type B Cable w/Ferrite
  • Rocker Power Switch

Downloads

  • Atom DAC+ Instructions (EN)
  • Atom DAC+ Instructions (DE)
  • Atom DAC+ | Firmware v1.8.4 - For PS4/PS5

    Atom DAC firmware v1.8.4, dated 05/12/2021, is recommended for use with PS4/PS5 and all modern operating systems (MacOS, Win XP/7/8/10, iOS, Android, and Linux). Operating system volume will remain locked to 100%, as required for PS4/PS5.

    This version supports UAC2 with auto fallback to UAC1 when connected to a USB 1.1 hub or isolator, and supports connection to Android and iOS devices without a USB hub.

    For more information and Installation guidance, please see Custom Firmware Builds.

  • Atom DAC+ | Firmware v1.8.6 - Default

    Atom DAC+ firmware v1.8.6, dated 05/27/2021, is recommended for use with most operating systems.

    This version supports UAC2 with auto fallback to UAC1 when connected to a USB 1.1 hub or isolator, and supports connection to Android and iOS devices without a USB hub.

    For more information and Installation guidance, please see Custom Firmware Builds.

  • Atom DAC(+) XMOS Drivers v4.13.0

    No drivers are required for Mac OS, Linux, or Windows 10.

    You may optionally install the XMOS drivers in Windows 10 to enable ASIO support.

    XMOS drivers are required for UAC2 in Windows 7/8. Alternatively, you may use UAC1 fallback.

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