Berkeley Audio Alpha DAC Reference Series 2

Berkeley Audio Alpha DAC Reference Series 2 (upgraded to Series 2 in Oct, 2016). DAC is in 9/10 condition, includes remote, manual and all factory packing. Selling to raise some cash. 

Description

The original Alpha DAC Reference Series was a breakthrough product that reduced noise, particularly in the time domain, to levels significantly lower than any audio D to A converter previously available. The result wasan immediacy and presence of music reproduction that was closer to the microphone feed than ever before. Very fine spatial and timbral information heard in real life that was previously lost or hidden by noise was revealed by the Alpha DAC Reference Series.   

The unprecedented resolution of the Alpha DAC Reference Series allowed and demanded further development and perfection of digital algorithms and analog circuitry that otherwise would not have been possible. The lengthy development process that resulted in the Alpha DAC Reference Series 2 was challenging and resulted in design improvements that we feel again define the edge of what is possible. The only way to appreciate the level of performance achieved by the Alpha DAC Reference Series 2 is to listen to it. 
 
The presence and sonic reality of the Reference Series 2 is also made possible by tremendous electrical and mechanical noise isolation coupled with extreme time domain stability. Ceramic aerospace circuit board materials are used in all critical areas and the enclosure is carefully engineered to minimize electrical noise and maximize mechanical and thermal stability. The Reference Series 2 weighs 30 pounds and the entire enclosure is precision machined from solid billet 6061-T6 aluminum alloy. 
 
A high output metal IR remote control with direct input source selection is provided with the Reference Series 2. 

 
Specifications   

-Input sampling rate: 32kHz to 192kHz   

-Input word length: 24-bit   

-Ultra low phase noise Precision Clocking at 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz and  -192kHz sampling rates ± 100 ppm   

-Two channel analog stereo outputs: XLR balanced with pin 2 positive and RCA unbalanced

-Digital Inputs: AES – XLR, 110Ω; SPDIF1 – BNC, 75Ω; SPDIF2 – BNC, 75Ω; TOSLINK    Toslink optical connector 

-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 (6.15Vrms) maximum, +12dBu (3.1Vrms) or lower recommended   

-Unbalanced analog output level: 3.25Vrms maximum, 2Vrms or lower recommended  

-Digital volume & balance control: 0.1dB/step with .05dB/step L/R gain 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 upgradeable through signal inputs   

-Enclosure dimensions: 3.5"H X 17.5"W x 12.5"D  

-Weight: 30 lbs.   

-Mains power: 100/120/240VAC, 50/60Hz   

-Power consumption: 25W