Atom DAC 2

SKU: DAC-ATOM-2-15V-POWER
In stock
Sale price$199.99 CAD

All Metal, Custom Engravable, USB Type C

Atom DAC 2 helps your get the most out of your JDS Labs Atom Amp 2 or Atom Amp+, ensuring that your amp delivers its rated power. Equipped with USB Type C and TOSLINK inputs, Atom DAC 2 runs on our latest upgradeable XMOS-based firmware, supporting UAC2 and UAC1 fallback*. Its subtle light ring glows during use, automatically powers down during periods of inactivity, and wakes up instantly and silently. Additionally, Atom DAC 2 operates cooler due to a more efficient I/V stage, and its new aluminum enclosure is custom engravable!

USB TYPE C

Atom DAC 2's native USB Type C input receives up to 32/384kHz PCM over a custom XMOS based UAC2 engine with ASIO and DSD support. UAC1 mode for PS5 or Nintendo Switch is activated when using aUAC1 Fallback Cable.

DIFFERENTIAL SUMMING I/V OUTPUT

Differential output of an ES9018K2M DAC is paired with our unique, DC coupled, precision tuned transimpedance stage utilizing three OPA1692s per channel, or six opamps in total.

METAL ENCLOSURE

Atom DAC 2 is built in an aluminum chassis. The anodized surface is also eligible for free, custom engraving. Add text or artwork as you please in the shopping cart.

AUTO STANDBY

Atom DAC 2 automatically enters standby after 5 minutes of USB inactivity, powering down its light ring, and resumes from standby silently and instantly. We've also retooled Atom DAC 2's light ring, which is now bolted to the aluminum chassis for ruggedness.

MORE EFFICIENT

Atom DAC 2 is powered by a perfected supply network, with an external AC transformer and 10 regulators ensuring consistent rail voltage and super low ripple. Atom DAC 2 is also more efficient than Atom DAC+, saving power and running 10°F cooler.

UPGRADEABLE FIRMWARE

Atom DAC 2's XMOS based firmware configures and manages all functionality, with DFU support for future updates.

MEMS OSCILLATOR

Atom DAC 2 is clocked by 45/49MHz MEMS oscillators with ±25ppm frequency stability, delivering minimal jitter.

NO MORE ROCKER SWITCH!

Yes, Atom DAC 2 has a proper power switch! No need for the Rocker Switch bundled with Atom DAC(+).

Specifications

Performance

Frequency Response, 20Hz-20kHz
SINAD @ 1kHz, 20-22.4kHz
THD+N, 20Hz-20kHz
SNR, 20Hz-20kHz
IMD CCIF, 19/20 kHz -6 dBFS
Noise, A-Weighted
Dynamic Range, AES17, A-Weighted
Linearity Error -90 dBFS
Crosstalk, 1kHz, 100k Input
USB Jitter Components @ 12kHz
Maximum DAC Line-Output, 100K
PCB Stackup

Result

+/- 0.12dB
113 dB
< 0.0004%
117 dB
-105 dB
-111 dBV
119 dB
-0.05 dB
-121 dB
-129 dB
2 VRMS
4 Layers

Data Support

Audio Formats (USB)
Audio Formats (TOSLINK)
USB Interface
USB Driver OS Support

Description

16/44.1kHz thru 32/384kHz PCM, DSD64-DSD128
16/44.1k thru 24/192k PCM
UAC2 with UAC1 Fallback ¹
Windows 7/8/10/11, macOS, Linux, Android, iOS, PS4/PS5, Nintendo Switch²

  1. UAC1 supported by USB Isolator, sold separately.
  2. Appropriate cables are required for Android, iOS, and PS5, and Win 7/8

Packaged Items

Atom DAC 2
15VAC Power Supply → Please note current batch is labelled '14VAC 500mA'
USB C to USB A Cable w/Ferrite

Drivers

XMOS Driver v5.68 for Win 10/11 
Optional - XMOS Firmware Update Utility (DFU) for Win 10/11

Connectivity

Digital Inputs: USB Type C and TOSLINK
Line Output: RCA

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