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Table of Contents
- 1 Table of Contents
- 2 Introduction
- 3 Technology
- 4 Front Panel Indicators & Operation
- 5 Back Panel - Inputs and Outputs
- 6 In Use - Digital Output & Optical Inputs
- 7 Filter Settings
- 8 Connectivity (Examples)
- 9 USB Setup and Connectivity
- 10 Remote Control and Notes on High Resolution Playback
- 11 Technical Specifications
- 12 Glossary of Terms
- 13 Owners Log
- Download this manual
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Table of Contents
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Summary of Contents for Rega DAC-R
- Page 1 DAC- R Digital to Analogue Converter...
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Page 3: Table Of Contents
Contents Introduction Technology Front panel indicators & operation Back panel - inputs and outputs In use - Digital output & optical inputs Filter settings Connectivity (examples) USB set-up and connectivity Remote control and notes on high resolution playback Technical specifications Glossary of terms Owners log... -
Page 4: Introduction
DAC-R offers the highest possible resolution over all inputs including fully asynchronous USB with the addition of remote functionality. Developed to be simple to set up and use, the Rega DAC-R is designed to optimise performance from any two channel PCM digital audio source. -
Page 5: Technology
Technology The optical and coaxial input stage comprises a Wolfson digital receiver with a high stability, low jitter clock driving the receiver PLL. The receiv- er and PLL have their own dedicated power supplies. The DAC stage comprises a pair of parallel-connected Wolfson WM8742 DAC’s, that 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 reference CDP. -
Page 6: Front Panel Indicators & Operation
On/Off Input locked LED Filter Power on/off When the power button is pressed the Rega logo illuminates. Input Selects the 5 available digital inputs. Push to advance. Filter Selects the three avaiaible filters. Push to advance Input locked indicator Indicates the digital input signal is valid and the PLL in the receiver is locked. -
Page 7: Back Panel - Inputs And Outputs
Back panel - inputs and Outputs Inputs USB - Isolated Asyncronous/type B connector Optical Digital Input 1- Optical/Toslink Optical Digital Input 2- Optical /Toslink Co-Ax Digital Input 3- Isolated 75Ω Co-axial Phono Co-Ax Digital Input 4- Isolated 75Ω Co-axial Phono Outputs Digital output (via receiver &... -
Page 8: In Use - Digital Output & Optical Inputs
In use Power-up the DAC-R using the power switch on the front panel. After a few seconds you will hear an audible click from the output mute relay and the analogue audio will be active. Please note: the front panel will display the previously selected setting’s displayed before the unit was last powered... -
Page 9: Filter Settings
Filter settings The cut-off points of the filters are in the upper end of the frequency range. However, due to complex technical phenomena, this will have an effect lower in the frequency band. For further description, see the glossary of terms. -
Page 10: Connectivity (Examples)
Connectivity (examples) 1 USB A-B/ 2 OPTICAL/3 CO-AXIAL This page offers ‘suggested connectivity’. With so many products offering a number of options, it is important to check the manual of the product your are connecting for the appropriate or optimum output connection and settings required to operate properly. -
Page 11: Usb Setup And Connectivity
PC. IMPORTANT: Before you can use the USB function of the DAC-R you must first download the Rega USB Windows driver and install it on your PC. This driver is available for download from the Rega website, www.rega.co.uk. Go to ‘product range’ and select CD players / DAC’, then DAC-R. -
Page 12: Remote Control And Notes On High Resolution Playback
Notes on high resolution playback The DAC-R can operate up to 192kHz when used with a capable soundcard connected via the Co-axial, optical or USB input. Due to the limitations of some operating systems and playback software, the exact configuration and set-up can vary from one PC/laptop to another and may not have a bit perfect high sample rate ‘signal’... -
Page 13: Technical Specifications
Technical Specifications DAC 2x Wolfson WM8742 Frequency Response (100KΩ load) Filter 1 selected Low data rate 44.1/48KHz = 10Hz -0.05dB to (44.1K) 20.02KHz (48K) 21.7KHz -0.03dB Medium data rate 88.2/96KHz = 10Hz -0.05dB to (88.1K) 28.7KHz (96K) 31.2KHz -3dB High data rate 176.4/192KHz = 10Hz -0.05dB to (176.4K) 44.1KHz (192K) 47.7KHz -3dB Maximum output level = 2.175V into 100KΩ... -
Page 14: Glossary Of Terms
Glossary of terms ASYNCHRONOUS An asynchronous USB DAC uses its own clock to regulate the data rate from the computer, which allows for jitter-free data transfer Phase lock loop Pulse code modulation SPDIF Sony Philips digital interface protocol SOFT MUTE Software mute (not output mute) SOFT KNEE FILTER Filter with a large transition band which reduces dispersion and delay... -
Page 15: Owners Log
Owners Log Owner....................Date..................... Where purchased................. Owner....................Date..................... Where purchased................. Owner....................Date..................... Where purchased................. Owner....................Date..................... Where purchased................. Owner....................Date..................... Where purchased................. - Page 16 Rega Research Ltd. exceptional hi-fi designed and made in England.