{"product_id":"berkeley-audio-design-alpha-usb-series-2-interface-used-1","title":"Berkeley Audio Design Alpha USB Series 2 Interface (USED)","description":"\u003ch1\u003eBerkeley Audio Design Alpha USB Series 2 Interface\u003c\/h1\u003e\n\u003cp\u003eThis Berkeley Audio Alpha USB 2 is a fully functional, previously owned unit finished in black. It has been inspected and tested in-house and is confirmed to be operating properly.\u003c\/p\u003e\n\u003cp\u003eCondition notes: there is a small cosmetic blemish on the bottom of the chassis. This does not affect performance or usability.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFinish:\u003c\/b\u003e Black\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSN:\u003c\/b\u003e 2046\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eIncluded:\u003c\/b\u003e Remote control, manual, power cord\u003c\/p\u003e\n\u003ch5\u003e\n\u003cimg alt=\"Upscale Certified\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/Upscale_Certified_Pre-owned_b9c8ef32-29fd-480f-ae4e-8f9e2aaf7a3f.png?v=1547755606\"\u003e\u003cbr\u003e\u003cbr\u003eUpscale Certified Pre-Owned Components are fully bench-tested by an expert technician with over 25 years of experience. All vacuum tubes are new or test as new. We further protect your investment with a 90-Day Warranty. Buy used with confidence. Buy Upscale Certified Pre-Owned.\u003c\/h5\u003e\n\u003ch3\u003eConvert the noisy USB output of your streamer into low-noise, low-jitter AES\/EBU or S\/PDIF for your standalone DAC\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cfigure style=\"text-align: center;\"\u003e\n\u003cblockquote\u003e\n\u003cspan\u003e“\u003c\/span\u003eA breakthrough product that not only overcomes the limitations of the USB interface, but provides a state-of-the-art method of getting audio out of a computer. Switching over to the Alpha USB system was like sharpening the focus on a camera; very-low-level detail that had been just a bit indistinct or smeared snapped into vivid clarity.\u003cspan\u003e”\u003c\/span\u003e\n\u003c\/blockquote\u003e\n\u003cfigcaption class=\"source\"\u003e— ROBERT HARLEY, THE ABSOLUTE SOUND\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Our inventory has been updated with the latest Berkeley Audio USB 2.0 High Speed Audio input software optimized for modern high-speed, low latency USB 2.0 drivers, resulting in significantly improved audio quality.\u003c\/p\u003e\n\u003cp\u003eThe Alpha USB is an asynchronous USB Audio 2.0 to digital audio interface designed to provide the highest possible audio quality from computer and music server audio sources. \u003c\/p\u003e\n\u003cp\u003eThe Alpha USB has a USB Audio 2.0 high-speed input and switch-selected digital audio output signal type, either coaxial S\/PDIF using a BNC connector or balanced AES using an XLR connector. Sampling rates up to 192 kHz and word lengths up to 24 bit are supported. \u003cbr\u003e\u003cbr\u003eGreat care was taken in the design of the Alpha USB to isolate the noisy computer\/USB environment from the digital audio output. The USB receiver and processing are powered by the computer, while the output master clocks and line drivers are powered by a separate isolated linear power supply. There is no DC connection and also a high degree of capacitive and inductive isolation between the USB input and the digital audio output. \u003cbr\u003e\u003cbr\u003eTwo key factors combine to achieve the excellent audio performance of the Alpha USB; the unprecedented degree of electrical isolation between the USB input connection and the digital audio output and the very low noise\/low jitter performance of the individually tested audio output master clocks. \u003cbr\u003e\u003cbr\u003eThe Alpha USB is designed to work with Apple Macintosh and Windows PC computers and Linux-based music servers. For Linux, the operating system must be ALSA 1.0.23 or above. It must also have the ability to select the output device. Apple computers using Snow Leopard or later operating systems also interface directly with the Alpha USB. It is not necessary to install a USB Audio 2.0 Standard driver for those operating systems. \u003cbr\u003e\u003cbr\u003ePC’s using Microsoft Windows 10 release 1703 and above do not require installation of the Alpha USB Windows driver and the driver provided with Windows should be used. Only Microsoft Windows PC’s using Windows XP, Vista, 7, 8, 8.1 and earlier versions of 10 require the Alpha USB Windows driver which is available on the Downloads page.\u003c\/p\u003e\n\u003cp\u003eA 6' power cord is included. It is recommended that the USB cable be sited as far away from the DAC as reasonably possible.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eInput:\u003c\/strong\u003e USB B Audio 2.0 Standard asynchronous connection\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eOutputs:\u003c\/strong\u003e Coaxial BNC S\/PDIF , AES XLR\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSampling rates:\u003c\/strong\u003e 44.1 kHz to 192 kHz, up to 24 bit\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSupported operating systems:\u003c\/strong\u003e Apple, Windows, and Linux\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eDimensions (WHD):\u003c\/strong\u003e 10.5\" x 2.5” x 5”\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.5 lb.\u003c\/p\u003e","brand":"Berkeley Audio Design","offers":[{"title":"Default Title","offer_id":52475268399288,"sku":"BK-AL-USB2-2046-USED","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1564\/1247\/files\/IMG_8726_92dccb74-9d3d-4432-b91c-f0100ee9cb2a.jpg?v=1770229607","url":"https:\/\/upscaleaudio.com\/products\/berkeley-audio-design-alpha-usb-series-2-interface-used-1","provider":"Upscale Audio","version":"1.0","type":"link"}