Audio by mark jones

Berkeley Audio Design, LLC was founded by alumni of Pacific Microsonics, Inc., developer of the HDCD process and the Pacific Microsonics Model One and Model Two, widely considered to be the highest quality professional ADC and DAC ever produced.
Berkeley Audio Design was formed with the goal of making that level of fidelity available to music lovers and audiophiles everywhere with products designed and manufactured entirely in California.
The Berkeley Audio Design Alpha DAC Reference Series 3P, the Alpha USB Reference Series, the Alpha DAC Series 3P and the Alpha USB Series 2 are all major achievements towards that goal.

Other Products by Berkeley Audio Design
Alpha DAC Reference Series 3P
$51,000

The Perfected Technology Alpha DAC Reference Series 3P achieves a level of time domain coherence never
available before in an audio D to A converter. The result is profound musical realism. Time domain incoherence
erases subtle spatial and timbral audio information essential to the experience of live music. Perfected Technology
goes beyond sounding excellent to simply sounding real.

https://audiobymarkjones.ca/wp-content/uploads/2026/11/RS3Front.webp
Alpha DAC Reference Series 3P technical specs
  • Input sampling rate32kHz to 192kHz
  • Input word length24-bit
  • Digital InputsES - XLR, 110Ω; SPDIF1 - BNC, 75Ω; SPDIF2 - BNC, 75Ω; TOSLINK - Toslink optical connector
  • Balanced analog output level+18dBu (6.15Vrms) maximum, +12dBu (3.1Vrms) or lower recommended
  • Unbalanced analog output level3.25Vrms maximum, 2Vrms or lower recommended
Alpha DAC Series 3P
$26,000

The Alpha DAC Series 3P uses Perfected Technology introduced in the Alpha DAC Reference Series 3P to achieve a
new level of musical realism made possible because of extremely high time domain coherence. Time domain
incoherence erases subtle spatial and timbral audio information essential to the experience of live music.
Perfected Technology goes beyond sounding excellent to simply sounding real. New proprietary RF waveguide
technology, new ultra-low noise reclocking and new extremely low noise software all dramatically increase musical
reality. Berkeley Audio Design Perfected Technology achieves a level of time domain coherence never available
before in an audio D to A converter.

https://audiobymarkjones.ca/wp-content/uploads/2026/11/ADAC3P.webp
Alpha DAC Series 3P technical specs
  • Input sampling rate32kHz to 192kHz
  • Input word length24-bit
  • Digital InputsAES - XLR, 110Ω; SPDIF1 - BNC, 75Ω; SPDIF2 - BNC, 75Ω; TOSLINK - Toslink optical connector
  • Balanced analog output level+18dBu (6.15Vrms) maximum, +12dBu (3.1Vrms) or lower recommended
  • Unbalanced analog output level3.25Vrms maximum, 2Vrms or lower recommended
Alpha USB Series 2
$9,250

The Alpha USB Series 2 is a noise isolating, reclocking digital audio interface with asynchronous USB 2.0 High Speed Audio input software optimized to connect to modern streamer/servers with a USB 2.0 High Speed Audio output.

The Alpha USB Series 2 builds on the strengths of the Alpha USB with new proprietary USB 2.0 High Speed Audio input software optimized for modern high speed, low latency USB 2.0 High Speed Audio drivers. The result is very significantly improved audio quality.

The Alpha USB Series 2 has a USB 2.0 High Speed Audio input data connection and a switch selectable output signal type – either coaxial SPDIF using a 75Ω BNC connector or balanced AES using an XLR connector. Sampling rates up to 192kHz and word lengths up to 24-bit are supported.

https://audiobymarkjones.ca/wp-content/uploads/2026/11/alphausb.webp
Alpha USB Series 2 technical specs
  • InputUSB Audio 2.0 Standard asynchronous connection, type B receptacle
  • OutputsSwitch selectable, coaxial SPDIF on 75Ω BNC connector or balanced AES on 110Ω XLR connector
  • Supported sampling rates44.1kHz to 192kHz
  • Supported operating systemsApple, Windows and Linux