ATOM, STACKED Atom DAC is built to pair with the enormously popular JDS Labs Atom Amp, adopting our latest XMOS based USB Audio Class 2 input stage with support for future firmware updates. A subtle light ring glows when in use, and automatically powers down during inactivity. A dedicated transformer ensures mains isolation. Stack Atom DAC with your Atom Amp and enjoy! MEMS OSCILLATOR Atom DAC's USB engine is clocked by an SiTime MEMS oscillator with ±10ppm frequency stability, delivering pristine jitter. UPGRADEABLE FIRMWARE Atom DAC's XMOS based firmware configures and manages its USB input, with DFU support for future feature additions. USB AUDIO CLASS 2 Atom DAC supports up to 32/384kHz PCM over a custom XMOS XU208 based UAC2 engine. While we claim no measurable superiority of high sampling rates, UAC2 and ASIO support satisfy your pursuit of bitperfect listening. EXTERNALLY POWERED Atom DAC is powered by a perfected supply network, with an external AC transformer and 10 regulators that ensure consistent rail voltage and super low ripple. AUTOMATIC STANDBY Atom DAC automatically enters standby after 15 minutes of inactivity, powering down its light ring and D/A circuitry, and audio wakes up within milliseconds. Standby can optionally be disabled by loading our 'sleepless' firmware. DIFFERENTIAL SUMMING OUTPUT Differential output of a AK4490EQ DAC is summed by a low noise NJR output stage, with DC coupling throughout. Drive any load you wish. SPECIFICATIONS DAC PERFORMANCE Frequency Response 10Hz-20kHz+/- 0.15dB SINAD110 dB THD+N 20Hz-20kHz< 0.0008% IMD CCIF 19/20 kHz -6.03 dBFS0.00013% IMD SMPTE -6.03 dBFS0.0017% Noise (A-Weighted)-109 dBu Dynamic Range (A-Weighted)117 dB Linearity Error -90 dBFS-0.06 dB Crosstalk -10 dBFS 100K RCA-104 dB USB Jitter Components 12kHz-124 dB Maximum DAC Line-Output, 100K2.00 VRMS PCB Stackup4 Layers DIMENSIONS 5.0 x 5.3 x 5.4 in Weight8 oz DATA SUPPORT Audio Formats: 16/44.1kHz thru 32/384kHz PCM USB Interface: USB Audio Class 2 USB Driver OS Support: Windows 7/8/10, MacOS, Linux, Android CONNECTIVITY Digital Inputs USB DAC Line-Output RCA CONFIGURATION Dual Gain1.0x and 4.5x Volume Potentiometer TaperAlps 15A PACKAGED ITEMS Atom DAC 15VAC Power Adapter 3ft USB Type A to Type B Cable w/Ferrite DOWNLOADS Atom DAC - Instructions (EN) Atom DAC - Instructions (DE) Atom DAC - XMOS Drivers v4.13.0 Atom DAC - Optional Sleepless Firmware v1.5.2
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