potential of your digital audio.
Sam Tellig sings the praises of the Rega DAC in the May, 2011
issue of Stereophile magazine calling the sound of the DAC 'superb' and
The Rega DAC is a
16/20/24-bit at 32kHz to 192kHz digital to analogue converter incorporating an
enhanced version of the Rega designed circuit. Developed to be simple to set up
and use, the Rega DAC is designed to optimize performance from any two channel
PCM digital audio source such as a CD player PC or streaming device.
With the PC/Laptop and MAC now widely accepted as creditable mediums for storing
and streaming music. The use of high quality lossless files such as WAV, FLAC
and ALAC offer performance through the DAC equal to and in some cases better
than red book CD.
Housed in a custom
aluminum and steel case and boasting a pair of Wolfson DAC IC's, 5 user
selectable digital filters, two isolated Co-axial inputs, two Toslink SPDIF
inputs and an isolated USB input. The Rega DAC is designed and engineered to
perform way above its class.
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 minimized 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.
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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 minimized 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.
Silver satin metal finish
Black satin metal finish