LH Labs Geek Out V2+

LH Labs Geek Out V2+ Ultra-High Resolution Battery Powered USB Headphone
Amplifier/DAC. Like new - used less than 10 times. No scratches or
other wear at all on it's T6061 Aluminum chassis. This is the latest
(and final, from what I see) iteration of the Geek Out V2+, since LH
Labs had issues with the initial production of 3D printed V2+ units. On
this one, the case edges are injection molded plastic, not 3D printed as
on earlier V2+ units, so the finish is very nice and much more sturdy
than those with 3D printed case sides. Installed firmware is v1.0, the
latest available. Multicolored LED's indicate file type and sample rate
of file currently being played and charging status, a very handy
addition compared to other DAC's I've seen.

"Geek Out V2+ is a
portable USB headphone amp and digital to analog converter. It plugs
into the USB port of your mobile device or computer and replaces the
internal sound circuit with its super-quiet, powerful and ultra-high
resolution sound card. Geek Out V2+ lasts up to 10 hours per charge and
is about 25 times more powerful than your device's headphone jack. It
plays up to 32 bit/384kHz PCM and DSD128 music files, making it the most
powerful and capable audio device in the world."

PCM Sample Rates Supported: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz.
DSD Sample Rates Supported: 2.8224MHz, 3.072MHz, 5.6448MHz, 6.144MHz
Bit Depth Supported: 1-bit, 16-bit, 24-bit, 32-bit
Digital Modes: TCM, FRM
Analog Gain Modes: 100mW, 1000mW
Battery: 3200mAh lithium ion

Compatible
out of the box with iOS devices with a camera connection kit. Drivers
available on the LH Labs Geek Out V2+ website for Windows computers.

Much more information and images are available at the LH Labs Geek Out V2+ website.

Other specifications:

Frequency Response: 2 Hz – 55 kHz (-0.1 dB)
Maximum Power Output: User switchable – 1000mW @ 16 Ohms, 100mW @ 16 Ohms
Maximum Output Voltage: 4.0 Vrms (high gain)
Total Harmonic Distortion (THD+N): <0.01%
Signal to Noise Ratio (SNR): >105 dB unweighted, >108 A-weighted
Input: USB 2.0 (Asynchronous)
Outputs: Dual
1/8”/3.5mm analog stereo (one single-ended TRS, one balanced TRRS) (Red
rubber plug present for covering output not in current use)
Output Impedance: 0.47 Ohms
Output Stage OpAmp: Texas Instruments TPA6120A2
Amplifier Output Bias: Class A
Digital-to-Analog Converter IC: ESS SABRE9018AQ2M
USB Controller: XMOS XS1-SU01A-FB96

Please contact me with any questions. Willing to consider reasonable offers. Thank you for looking!