Portable USB DAC and headphone amp for Mac and PC
Apogee Groove is the best portable USB DAC and headphone amp for listening to music on your Mac or PC. Groove takes the same high quality audio technology found in the world’s most prestigious recording studios and delivers it to your laptop. Connect Groove to your computer’s USB port and your headphones or powered speakers to Groove’s audio output. It’s that easy. Groove’s output provides ample power at any impedance and Apogee’s Constant Current Drive™ technology makes your headphones sound their best. You’ll be amazed by the difference in sound quality – the precise stereo image, punchy bass and stunningly clear high-hats.

Mac System Requirements	Computer: Intel Mac 1.5 GHz 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
PC System Requirements	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) Windows 8 (32 and 64 bit) Windows 8.1 (32 and 64 bit) Connection and Power: Any available USB port Driver: Register to download from Apogee's website
I/O	1x USB Micro B 1x 1/8" (3.5 mm) stereo

D/A Converter

Resolution	Up to 24-bit at 192 kHz
Chip	8-channel ESS DAC (4 DACs per channel)
THD+N	600 ohm load at 16 dBu: -107 dB 30 ohm load at 10.5 dBu: -100 dB
Dynamic Range	117 dB (a-weighted)
Frequency Response	10 to 20,000 Hz ±0.2 dB
Max Output	Into 30 ohms: 225 mW Into 600 ohms: 40 mW
Power	5 V, 500 mA, via USB 2.0 bus
Dimensions (L x W x H)	3.74 x 1.18 x 0.63" (95 x 30 x 16 mm)
Weight	0.10 lb (45.35 g)