NEW LOWER PRICE
Very few hours; like new.  Buyer to pay shipping/insurance as well as any Paypal fees.
Retail $20,000 Audiogon Blue Book $12,178.13. You may see the Berkeley dac selling for / sold for less but that doesn’t account for newest model series 2 with the MQA capability. That adds thousands to price. 

Berkeley Alpha DAC Reference Series 2 MQA

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The Berkeley Audio Design Alpha DAC Reference Series 2 MQA’s unmatched time domain resolution, low noise digital processing and highly accurate analog circuitry combine to reveal the amazing potential of MQA encoded audio. The Alpha DAC Reference Series 2 MQA replaces the Alpha DAC Reference Series 2 which will no longer be produced. In addition to providing MQA Rendering at an unmatched level of audio quality, the Alpha DAC Reference Series 2 MQA features significantly improved audio quality with standard PCM, non-MQA recordings.

• 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

• MQA rendering automatically detects MQA Core decoded signals and performs MQA rendering

• 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