Free Shipping for all online orders over $100! Applies only to continental U.S.A.

z Account

Boulder 2120 Digital to Analog Converter

Have questions about this product?

We love answering questions. Talk to an expert now.


on all e-commerce orders over $100


Always Included

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

A 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 worldwide

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

Audio File Formations 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 World 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, 50-60 Hz