JDS Labs
JDS Labs Atom DAC 2
JDS Labs Atom DAC 2
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USB-C DAC
The Atom DAC 2 is the ideal companion to JDS Labs' Atom Amp 2 and Atom Amp+, and suits any other hi-fi use. Its USB-C and optical (Toslink) inputs make it compatible with many sources. It has a latest-generation XMOS interface supporting UAC2, with UAC1 fallback. Its front-panel light comes on during use and switches off automatically during idle periods. The DAC 2 is also more energy-efficient than its predecessor, thanks to a better-performing I/V stage, and it adopts an all-aluminium case.
USB Type-C
The Atom DAC 2's native USB Type-C input accepts up to 32-bit / 384 kHz PCM via a dedicated XMOS-based UAC2 engine, ASIO and DSD compatible. UAC1 mode, for the PS5 or Nintendo Switch, is enabled with the dedicated UAC1 USB cable.
More efficient
The Atom DAC 2 has an improved power supply, with an external AC transformer and 10 regulators ensuring constant rail voltage and very low ripple. It is also more energy-efficient than the Atom DAC+: it uses less power and runs cooler.
MEMS oscillators
The Atom DAC 2 is clocked by 45/49 MHz MEMS oscillators with ±25 ppm frequency stability, for minimal jitter.
Up-to-date firmware
The Atom DAC 2's firmware handles all the features of the XMOS chip and makes updates easy.
Automatic standby
The Atom DAC 2 automatically goes into standby after 5 minutes of USB inactivity, and wakes up instantly as soon as you use it. Its light ring is now fixed to the aluminium chassis for added robustness.
Metal case
The Atom DAC 2 is built in an aluminium chassis.
No more inline switch!
The Atom DAC 2 has a real power switch: no more need for the inline toggle switch supplied with the Atom DAC(+).
Performance
- Frequency response: 20 Hz - 20 kHz +/- 0.12 dB
- SINAD @ 1 kHz (20-22.4 kHz): 113 dB
- THD+N (20 Hz - 20 kHz): < 0.0004%
- Signal-to-noise ratio (20 Hz - 20 kHz): 117 dB
- IMD CCIF 19/20 kHz -6 dBFS: -105 dB
- Noise, A-weighted: -111 dBV
- AES17 dynamic range, A-weighted: 119 dB
- Linearity error at -90 dBFS: -0.05 dB
- Crosstalk at 1 kHz, 100 kOhm load: -121 dB
- USB jitter components @ 12 kHz: -129 dB
- Maximum output level (line, 100 kOhms): 2 VRMS
- 4-layer PCB
- AC power supply included
Dimensions
- Case dimensions: 131 x 130 x 34 mm
- Weight: 425 g
