New, opened box, but never removed from inner packaging.

Product info:

plays PCM digital audio sources up to 24-bit/192kHz

decodes Direct Stream Digital (DSD) files at 2.8MHz or 5.6MHz resolution natively or via DoP (DSD over PCM).

TI PCM1795 32-bit/192kHz DAC for precise playback of digital music files

asynchronous USB technology for reduced timing jitter and better sound on USB input

exclusive Denon Advanced AL32 processor upconverts and upsamples all input signals to 32-bit/192kHz for improved detail and clarity with softer, low-level sounds

built-in high-performance headphone amplifier with front-panel volume control

Touch Control OLED display indicates selected input, audio file type (PCM, DSD), sampling frequency, and headphone volume

independent master clock crystals (44.1kHz and 48kHz) accurately clock incoming signals at any sampling frequency

noise isolating circuit design prevents distortion via USB connection from computer

Inputs:

USB (Type B) input for connection to a computer

two optical digital audio

one RCA coaxial digital audio

Outputs:

fixed, line-level stereo RCA audio output

full-size 1/4" (6.3mm) headphone jack

Other info & specs:

supported sample rates for USB input: 32/44.1/48/88.2/96/176.4/192kHz Linear PCM; 2.8MHz (DSD64) and 5.6MHz (DSD128)

supported sample rates for coaxial and optical inputs: 32/44.1/48/88.2/96/176.4/192kHz Linear PCM

operating system requirements: Windows® XP (Service Pack 3), Windows Vista, Windows 7, Windows 8, and Mac® OS X® 10.6.3 (Snow Leopard) or later

USB 2.0 driver required for playback on Windows computers (free USB driver download available from Denon's website)

Mac OS X 10.6.3 or later supports plug-and-play operation, so no dedicated driver is required

frequency response:

24-bit/192kHz input signal: 2-20,000 Hz (±0.5 dB)

DSD64 input signal: 2-50,000 Hz (-3 dB)

THD: 0.0018%

signal-to-noise ratio: 112 dB

external AC power supply included

vertical and horizontal mounting capability with 4 self-adhesive rubber feet and vertical-mount stand included

6-3/4"W x 2-3/16"H x 8-1/16"D (horizontal orientation)

weight: 3.3 lbs.

If connecting to a TV, please make sure you can select "PCM" output in your TV's audio menu. This DAC cannot decode multi-channel Dolby® Digital signals.