Digital-to-Analog Converter

There are now more ways than ever to enjoy your favorite digital audio and video media. There are also more ways to receive it. And the Boulder 2120 Digital-to-Analog Converter is set up to address them all.

Its architecture is modular to help prevent future obsolescence. It can connect to streaming, server, or transport based audio in both PCM and DSD. It has become the source component that can play high-definition wireless streaming video to your AV system. All of this and the 2120 is still the best sounding D/A converter you’ve ever heard, too.


  • Large 12.3" (31.2 cm), full-color, easy-to-read LCD display

  • Decodes MP3, FLAC, xFLAC, WAV, xWAV, ALAC (Apple Lossless), AIFF, OGG Vorbis, and DSF (DSD 1x and DSD 2x) music files

  • Supports all common digital data rates and resolutions

  • Accepts streaming (USB and UPnP/DLNA Ethernet) and traditional (HDMI, Toslink, S/PDIF and AES3) digital input connections

  • Artist, track name, album name, cover art and file type information is displayed when available during streaming

  • Internal volume control for direct connection to amplification

  • Plays online audio and video services such as Tidal, Spotify, Netflix or YouTube via HDMI inputs, including video throughput

  • Four isolated chassis: left audio, right audio, user interface, and power supply

  • Full selection of optional digital input modules can be chosen to fit any system needs

  • Comprehensive function and display setup modes to tailor the 2120 to the user's preferences

  • Dual standby modes (normal and low power options) to meet all energy efficiency requirements

  • Uses 20 fully-discrete 993S gain stages, a modern descendent of the 990 gain stage used in broadcast and recording studios world-wide

  • Automatic software updates when linked to an active Internet connection

  • IR remote and networked IP control for use in stand-alone systems or fully integrated homes

  • Differentially balanced version of Boulder's Precise Interval Clock to eliminate jitter and maintain ultra-precise data timing at the DACs


Digital-to-Analog Converter
  • Digital Inputs

    HDMI, Ethernet (RJ45), USB 2.0, S/PDIF (RCA), AES3 (XLR), Tousling optical (EIAJ)

  • Audio File Formats Supported

    PCM, DSF (DSD 1x/2x), FLAC, xFLAC, WAV, xWAV, AIFF, Ogg Vorbis, MP3, ALAC

  • PCM Sample Rates Supported (kHz)

    32, 44.1, 48, 88.2, 96, 176.4, 192, 352.8, 384

  • PCM Word Lengths Supported

    16-bit through 32-bit

  • Analog Outputs

    2 pairs balanced XLR, adaptable to RCA

  • Output Impedance

    100 ohms (balanced), 50 ohms (unbalanced)

  • Output Level

    4.0V balanced, 2.0V unbalanced @ 0dBFS

  • Volume Control Range

    80 dB in 1.0 dB steps

  • Display

    12.3" (32.25 cm), 1280 x 480 backlit LCD

  • Internet/UPnP/DLNA

    2 x RJ45 Ethernet connector

  • Control Systems

    IP, IR, 12V trigger out

  • Signal-to-Noise Ratio

    115 dB, 22-30 kHz, unweighted

  • THD+N, 0dBFS

    Less than 0.0008% to 20 kHz

  • Frequency Response

    -0.5 dB @20 kHz

  • DAC Weight

    63 lbs., shipping 77 lbs.
    (28.6 kg, shipping 34.9 kg)

  • Power Supply Weight

    48 lbs., shipping 59 lbs.
    (21.8 kg, shipping 26.8 kg)

  • Power Requirements

    100, 120, 240VAC, 50-60Hz