About Rega DAC - Black by Rega:
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Maximize the potential of your digital audio!
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 optimise 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 aluminium 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.
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. 
Rega DAC Black
Features:
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
Rega DAC Black
Specifications:
DAC: Two Wolfson WM8742
Frequency Rresponse (100K load): Low data rate 44.1/48 kHz Filter 2 = 10 Hz -0.05 dB to 20 kHz -0.1 dB; Medium data rate 88.2/96 kHz Filter 2 = 10 Hz -0.05 dB to 30 kHz -1 dB; High data rate 176/192 kHz Filter 2 = 10 Hz -0.05 dB to 41 kHz -1 dB
Total Harmonic Distortion (24-bit, 96 kHz): 0.006% @ 1kHz
Signal-to-noise ratio: -105 dB (Relative to maximum output level with a 100 Hz to 22 kHz bandwidth)
Maximum output level: 2.175V into 100K load
Bit resolution: 16 to 24 bit (USB is limited to 16 bit)
Supported data rates: 32, 44.1, 48, 88.2, 96, 176, 192 kHz
Power consumption: 7.6W
Dimensions: 8.5" wide, 3.1" high, 10.6" deep
Weight: 9 lbs.
Digital Input
USB Isolated (16-bit, 32/44.1/48 kHz)
Input 1 Optical/Toslink (24-bit, 32/44.1/48/88.2/96/176.4/192 kHz)
Input 2 Optical/Toslink (24-bit 32/44.1/48/88.2/96/176.4/192 kHz)
Input 3 Isolated 75 ohm Co-axial (24-bit, 32/44.1/48/88.2/96/176.4/192 kHz)
Input 4 Isolated 75 ohm Co-axial (24-bit, 32/44.1/48/88.2/96/176.4/192 kHz)
Rega DAC Black
Reviews
"The Rega DAC is an excellent choice for anyone thinking about archiving vinyl, provided you have an excellent-quality analog setup with which to capture it. ... On many levels, I found the sound of the Rega DAC more akin to that of its flagship turntable the P9 (which has been a long-term component in my reference system). It shares the P9's quick and open presentation with a healthy dose of pace and timing."
- Jeff Dorgay, ToneAudio magazine, December 2010
"You'll gravitate toward the Rega DAC for its distinctively Rega sound quality: rich, full-bodied, tube-like… I can't think of any better way to upgrade while keeping, say, a Rega CD player as a transport."
- Sam Tellig, Stereophile magazine, May 2011
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