Norman Audio

Used Berkeley Alpha DAC Series 2 + Alpha USB

Berkeley Alpha DAC Series 2

The Alpha DAC Series 2 employs new clocking and isolation technologies that provide enhanced imaging precision, timbrel purity and resolution.
Unequaled interpolation technology up-samples 44.1kHz CD’s to provide almost 176.4kHz quality and produces superb fidelity at all sampling rates from 32kHz to 192kHz
IR remote control of all functions including volume and balance allows direct connection to power amplifiers
Advanced input signal jitter rejection

Berkeley Alpha DAC Series 2 – Specifications

  • Input sampling rate: 32kHz to 192kHz
  • Input word length: 24-bit
  • Two channel analog stereo outputs: XLR balanced and RCA unbalanced
  • Digital Inputs: AES – Single XLR 110Ω, SPDIF1 – BNC 75Ω, SPDIF2 – BNC 75Ω, Toslink – Optical
  • HDCD decoding detects 16-bit flag at 44.1kHz or 24-bit flag at all sampling rates
  • Multiple digital filter options
  • Balanced analog output level: +18dBu maximum, +12dBu or lower recommended
  • Unbalanced analog output level: 3.25Vrms maximum, 2Vrms or lower recommended
  • Digital attenuation and balance control: 0.1dB/step with .05dB/step trim, 60dB range
  • Frequency response at ≥ 88.2kHz sampling rates: ± 0.1dB from < 0.1Hz to 35 kHz, – 3dB at 59kHz for 176.4kHz and 192kHz sampling rates
  • Distortion at recommended levels: all products ≤ -120dBFS
  • THD+N at maximum level: < -110dBFS
  • Firmware field upgradeable through signal inputs
  • Enclosure dimensions: 1.75”H X 16.5”W x 10.4”D, 19” rack mount option
  • Weight: 9 lbs.
  • Mains power: 100/120/240VAC, 50/60Hz, IEC power input connector
  • Power consumption: 25W, designed for continuous operation

Berkeley Alpha USB

The Alpha USB is an asynchronous High Speed 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 Standard input and switch selected digital audio output signal type, either coaxial SPDIF 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.  

Berkeley Alpha USB – Specifications

  • Input: USB Audio 2.0 Standard asynchronous connection, type B receptacle
  • Outputs: switch selectable, coaxial SPDIF on 75Ω BNC connector or balanced AES on 110Ω XLR connector
  • Supported sampling rates: 44.1kHz to 192kHz
  • Supported word lengths: up to 24-bit
  • Supported operating systems: Apple, Windows and Linux
  • Enclosure dimensions: 2.3”H X 10.5”W x 5”D, 2.55”H including feet
  • Mains power: 100/120/240VAC, 50/60Hz, IEC power input connector
  • Power consumption: 3W, designed for continuous operation

Click here to read more – Berkeley Alpha DAC Series 2

Click here to read more – Berkeley Alpha USB

Reviews

https://www.theabsolutesound.com/articles/berkeley-audio-alpha-dac-series-2-tas-1/

https://positive-feedback.com/Issue63/bada_dac.htm

Sale Price: S$4,000

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