Great condition. Lovingly cared for by an audio nerd in a kid-free, pet-free, smoke-free home. There are two minor cosmetic scratches that I point to in the pictures. Feel free to zoom in. Turn your computer into an audiophile-grade music sourceComputers are great sources for music except for one glaring problem: they dont sound very good. Thats where a high-quality digital-to-analog converter, or DAC, will help by transforming your digital audio files into sweet-sounding music. Sonys UDA-1 does just that, with all kinds of formats, including high-resolution DSD and FLAC files. Better yet, its also an integrated amplifier, so it can power your speakers and accept other sources like CD players, an iPod® or other portable device, and even a turntable with a preamp. The UDA-1s small footprint makes it a great fit for a high-performance desktop system alongside your computer and bookshelf speakers.High-res audio puts you inside the musicThis equipment plays high-resolution audio files that can re-create more lifelike sound than CDs, bringing subtle details to life. High-res online music stores offer a variety of formats including 24-bit/96kHz, 24-bit/192kHz, and DSD. data-original-title=High-res audio data-placement=left title= style=box-sizing: border-box; color: rgb(119, 116, 115); text-decoration-line: underline; background-color: rgba(0, 0, 0, 0); -webkit-print-color-adjust: exact !important;>Handles DSD and other high-res formatsThere are lots DACs out there capable of decoding high-resolution files in formats like FLAC and AIFF. But the UDA-1 also offers full support for Direct Stream Digital, or DSD, a Sony-developed format first used in Super Audio CD. These high-resolution files offer sound that, for many listeners, is closer to analog than digital has ever come. With more record labels, including Sony Music, rolling out DSD downloads, this DAC offers the versatility to enjoy this exciting format as well as many others.Make all your digital tunes shineBesides DSD, the UDA-1 handles the most popular digital audio formats, from MP3s to CD-quality lossless and high-res files. The Digital Sound Enhancement Engine helps make even low bitrate files sound their best by digitally restoring high frequencies that are lost in file compression. So whether youre playing old MP3s downloaded from iTunes® or high-res downloads from sites like HDtracks, the UDA-1 will deliver them with rich detail and smoothness.Its also an integrated ampThe UDA-1 makes a great standalone DAC as part of a hi-fi stereo system. But if youre setting up a desktop system with your computer, connect a pair of bookshelf speakers and let the UDA-1 also serve as an integrated amp. The dual-mono circuit layout minimizes interference between the left and right channels for faithful reproduction of your music. And the rigid chassis with aluminum top and front panels prevents vibration-induced distortion from creeping into playback. Need more power? You can use the UDA-1 as a preamp and connect it to a power amplifier to drive more demanding speakers. Product highlights:20 watts x 2 into 4 ohms (20-20,000 Hz) at 10% THDbuilt-in digital-to-analog converter decodes high-resolution digital music files, including DSD (up to 5.6448 MHz) and FLAC (up to 24-bit/192 kHz)compatible file formats: DSD (.dsf, .diff), WAV, AIFF, FLAC, ALAC (Apple Lossless), MP3, AAC, WMA, ATRAC, (unprotected, 2-channel files for all formats)Digital Sound Enhancement Engine (DSEE) restores high-frequency signals to compressed digital formats like MP3 for more natural, expansive sound (settings: On, Off, and Auto)asynchronous USB (Type B) input for connection to a computer (requires driver download)front-panel USB (Type A) input for connecting compatible smartphones, including an iPod or iPhone®frequency response: 10-100,000 Hzdigital inputs: 1 optical, 1 coaxial1 pair of stereo RCA inputs1 pair of analog stereo outputs for connection to a separate amplifierbinding-post speaker terminalsfull-sized (1/4) headphone jackdetachable power cord