Rega Research DAC-R Digital to Analogue Converter




Maximise the potential of your digital audio.

The Rega DAC-R is a 16/20/24-bit at 32kHz to 192kHz digital to analogue converter. Incorporating an enhanced version of the Rega designed circuit, the DAC-R offers the highest possible resolution over all inputs including fully asynchronous USB with the addition of remote functionality.

$1,195.00

Available Finishes:

Silver Satin Metal Finish
Black Satin Metal Finish


  Features Summary:
  • 16-20-24-bit at 32kHz to 192kHz digital to analogue conversion
  • Five user selectable digital filters
  • Two isolated Co-axial inputs, two Toslink SPDIF inputs & Isolated USB input
  • Input stage comprising of a Wolfson digital receiver with a high stability low jitter clock
  • Jitter minimised by synchronously clocking the digital data with our receiver PLL
  • A pair of parallel-connected Wolfson WM8742 DAC's, which are driven via a buffer stage, a similar configuration to that used in the Isis CD player
  • Output amplifier with a discrete differential multiple feedback filter and output amplifier
  • Housed in a brand new custom steel & aluminium case

Technology:

The input stage comprises a Wolfson digital receiver with a high stability low jitter clock. The receiver and PLL have their own dedicated power supplies. The DAC stage comprises of a pair of parallel-connected Wolfson WM8742 DAC's, which are driven via a buffer stage, which ensures the integrity of the data being fed to the DAC IC's similar to the arrangement used in the Isis (Rega's refrerence CD player). Great care has been taken to remove noise generated by the PC and other input sources. During development this was identified as a major drawback with many DAC's on the market today.

The output amplifier employs a discrete differential multiple feedback filter and output amplifier, with a high cut-off frequency for use with higher sample rates. We decided not to use a sample rate converter and process the data at the incoming sample rate which keeps the signal processing to a minimum. Jitter was minimised by synchronously clocking the digital data with our receiver PLL (removing any jitter from the input signal).

All the capacitors associated with the analogue signal path are Nichicon FG bypassed with MMK polyester capacitors, and low impedance conductive polymer capacitors are used for DAC decoupling. The power supply utilizes a toroidal transformer, fast rectifier diodes and again Nichicon FG capacitors. There is a power supply for the control microcontroller, separate from the digital & analogue audio stages. Special attention being paid to the inter IC control signals ensuring the control data noise is kept to a minimum.

 
Untitled Document

audio | home theater | accessories | product lines | used gear | contact us
about overture audio | home

 
Overture Audio
618 South Main Street
Ann Arbor, MI 48104
Phone: 734-662-1812