Features:
- USB 2.0 connection to Mac and PC
- Up to 24 bit / 192kHz audio
- ESS Sabre DAC
- Enhances your iTunes, Tidal, Spotify, Pandora or other music listening experiences
- Constant Current Drive™ provides smooth frequency response with any headphones
- Quad Sum DAC™, 4 DACs per channel for highest dynamic range and lowest distortion
- Asynchronous clocking
- Multi-color LEDs for status and level indication
- Powered by USB
- Top panel buttons adjust and mute volume
- Compact and portable (95mm L x 30mm W x 16mm H)
- Premium aluminum build quality
- Built in the USA
D/A conversion :
- THD+N: -107 dB with 600 Ohm load @ 16 dBu
(-109 dB with 600 Ohm load @ 16 dBu-Anniversary Edition)
- THD+N: -100dB with 30 Ohm load @ 10.5 dBu
(-101dB with 30 Ohm load @ 10.5 dBu-Anniversary Edition)
- Dynamic Range: 117dB a-weighted
(119dB a-weighted-Anniversary Edition)
- Frequency response: 10Hz – 20K +/- 0.2dB
(10Hz – 20K +/- 0.1dB-Anniversary Edition)
- Max output level:
- 225mW into 30 Ohm
- 40mW into 600 Ohm
- 8 channel ESS DAC (4 DACs per channel)
System Requirements
Mac OS:
- Computer: Intel Mac 1.5GHz or faster
- Memory: 2 GB RAM minimum, 4 GB recommended
- OS: 10.8 or greater
- Connection and power: Any available USB port
- Driver: Mac Core Audio. No download or installation necessary.

Windows OS:
- PC or laptop manufactured after January 2006
- Intel Core 2 @ 1.6 GHz or AMD equivalent
- Memory: 1 GB RAM minimum
- Windows 7 (32 and 64 bit) or greater
- Connection and power: Any available USB port
- Driver: Register to download from Apogee’s website
In the box
- Groove
- USB-A Cable (1 meter)
- USB-C Cable (1 meter)
- Carrying pouch
- Product booklet (Quick Start Guide, Warranty Information)