DACs

Atom DAC+


$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

UPGRADEABLE FIRMWARE

UAC2 AND UAC1

EXTERNALLY POWERED

AUTOMATIC STANDBY

DIFFERENTIAL SUMMING I/V OUTPUT

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, DSD64-DSD128
  • Audio Formats (TOSLINK) 16/44.1k thru 24/192k PCM
  • USB Interface UAC2 with UAC1 Fallback 1.
  • USB Driver OS Support Windows 7/8/10/11, macOS, Linux, Android, iOS, PS4/PS5, Nintendo Switch 2.

Connectivity

  • Digital Inputs USB and TOSLINK
  • Line Output RCA
  • 1. UAC1 supported by UAC1 Fallback Cable, sold separately
  • 2. Appropriate cables are required for Android, iOS, and PS5

Packaged Items

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

Drivers

  • XMOS Driver v5.50 for Win 10/11

    XMOS driver v5.50 supports Windows 10/11, and is optional. No drivers are required for macOS, Linux, or Windows 10/11.

    This driver enables ASIO support, provides the ability to view and adjust Buffer Settings (latency), supports 16/24/32-bitrates, and adds full DSD64-128 support to Atom DAC+, EL DAC II+, and Element III.

    All XMOS based JDS Labs DACs are supported, including:

    • Element II
    • Element III
    • EL DAC II(+)
    • Atom DAC(+)

     

    This driver is developed and maintained by Thesycon, and licensed to JDS Labs. Please find the full change log at TUSBAudio_history.txt.

  • Optional - XMOS Firmware Update Utility (DFU) for Win 10/11

    This optional application for Windows 10/11 allows you to install firmware updates to XMOS based JDS Labs DACS, including:

    • Element III
    • Element II
    • EL DAC II(+)
    • Atom DAC(+)

     

    To use, unzip the folder and follow instructions in the article How to Install an XMOS Firmware Update.

  • XMOS Driver v4.13.0 for Win7/8 - Atom DAC(+)

    Archived XMOS driver v4.13.0 is required for UAC2 in Windows 7/8. Alternatively, you may use UAC1 fallback.

    For Win10/11, please use the most recent XMOS driver v5.30.0.

Firmware

  • Atom DAC+ | Firmware v2.1.0 - Default

    WINDOWS 10/11 INSTALLATION
    Please use the latest XMOS Driver and XMOS Firmware Update Utility (DFU).

    MAC OR LINUX INSTALLATION
    Please refer to: https://github.com/jdslabs/xmos_dfu

    Please refer to included README.txt for further information. Detailed installation guidance for all operating systems can also be found in the article, How to Install an XMOS Firmware Update


    CHANGELOG

    v2.1.0 (Released Feb 23, 2022)
    * Updated core XUD, USB, and I2C libraries
    * Move to RAM based-settings developed for Element III
    * Enforce de-emphasis OFF in USB mode, and Auto de-emphasis in S/PDIF mode
    * Improved error handling when USB Host is in standby
    * Instant mode switching between USB & S/PDIF: Eliminated LED toggling and 2s delay
    * Changed auto standby timeout from 15min to 5min
    * Changed default DPLL from 5 to 7 to improve general compatibility with 4k TVs
    * Improved UAC1 Descriptors to support Nintendo Switch
    * Disable operating system volume controls by default: Support PS4/PS5

  • Atom DAC+ | Firmware v2.1.0 - No Standby

    WINDOWS 10/11 INSTALLATION
    Please use the latest XMOS Driver and XMOS Firmware Update Utility (DFU).

    MAC OR LINUX INSTALLATION
    Please refer to: https://github.com/jdslabs/xmos_dfu

    Please refer to included README.txt for further information. Detailed installation guidance for all operating systems can also be found in the article, How to Install an XMOS Firmware Update


    CHANGELOG

    v2.1.0 (Released Feb 23, 2022)
    * Updated core XUD, USB, and I2C libraries
    * Move to RAM based-settings developed for Element III
    * Enforce de-emphasis OFF in USB mode, and Auto de-emphasis in S/PDIF mode
    * Improved error handling when USB Host is in standby
    * Instant mode switching between USB & S/PDIF: Eliminated LED toggling and 2s delay
    * Changed auto standby timeout from 15min to 5min
    * Changed default DPLL from 5 to 7 to improve general compatibility with 4k TVs
    * Improved UAC1 Descriptors to support Nintendo Switch
    * Disable operating system volume controls by default: Support PS4/PS5

Instructions & Guides

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