Berkeley Audio Design Alpha USB Series 2 Interface
Convert the noisy USB output of your streamer into low-noise, low-jitter AES/EBU or S/PDIF for your standalone DAC. With new USB 2.0 high-speed audio input.
“A 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.”
Note: 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.
The 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.
The 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.
Great 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.
Two 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.
The 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.
PC’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.
A 6′ power cord is included. It is recommended that the USB cable be sited as far away from the DAC as reasonably possible.
Specifications
Input: USB B Audio 2.0 Standard asynchronous connection
Outputs: Coaxial BNC S/PDIF , AES XLR
Sampling rates: 44.1 kHz to 192 kHz, up to 24 bit
Supported operating systems: Apple, Windows, and Linux
Dimensions (WHD): 10.5″ x 2.5” x 5”
Weight: 2.5 lb
Prompt Shipping and Professional Packing
Because of our long-standing relationship with UPS FedEx DHL as well as other major international carriers, we are able to provide various shipping options. Our warehouse staff are trained to package your goods precisely according to the specifications that we supply. Your items will undergo an extensive inspection and will be adequately secured before being shipped. We ship to thousands of customers each day from multiple countries. Our commitment to become the largest online retailer in the world is shown by this. The warehouses are located in Europe in the same way as they are in USA.
Note: Orders with more than one item will be assigned a processing date depending on the item.
Before shipment, all ordered items will be thoroughly inspected. The majority of orders today are shipped in 48 hours. The delivery time varies between 3-7 days.
Returns
Due to the multiple parties involved such as the factory and the warehouse, we're unable to effectively manage inventory. The actual stock levels can fluctuate at any time. It is possible that the stocks could be depleted after your order has been placed.
The period of time is 30 days. We are unable to replace or refund your purchase when it's been 30 days since the purchase.
To be eligible for return, it must be unopened and in the condition you received it in. The item must be returned in its original packaging.
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