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Nagra – 

CLASSIC DAC 

Installation 

Positioning 

In order to avoid risks of fire and electric shock, the CLASSIC DAC should be used 

exclusively indoors. 

 
If possible, it is preferable not to place other HiFi elements on top of your 
CLASSIC DAC and free access to the ventilation holes, located under the device 
and on the top surface, must be maintained at all times to allow sufficient natural 
cooling during operation. 
 
The Nagra CLASSIC DAC must be placed on a stable horizontal surface. We 
strongly recommend the use of the special anti-vibration support plates, HD 
VFSL, Vibration Free Supports, developed by Nagra. These consist of two solid 

aluminum isolated plates that use the same silicon base damping material as the 
Nagra CD mechanics. These plates will eliminate any mechanical vibrations that 
may interfere with the sonic excellence of your CLASSIC DAC. 
 

Connection block 

 

 

 
 
 
 

1.

 

Analog outputs, use either RCA or XLR, but not simultaneously.The  
XLR connectors are unbalanced.  

2.

 

Ground connector 

3.

 

Digital inputs (from left to right): 

 

a.

 

USB for PC or MAC computer connection 

b.

 

Optical via TOSLINK 

c.

 

AES / EBU, 2 inputs 

d.

 

S/PDIF: 1 on BNC, 1 on RCA 

 

4.

 

DC power input 

5.

 

Mains IEC input, fuse holder and switch 

 

Note about the Ground connector 

This feature is seldom used but often handy to solve specific setup issues. Your 
Nagra dealer will assist you on when and how to use this connector. 

1. 

3. 

2. 

5. 

4. 

Summary of Contents for CLASSIC DAC

Page 1: ...P N 2055125151 All rights reserved 2020 rev1 CLASSIC DAC D A converter Instruction manual ...

Page 2: ...g inputs 10 Reseting input names 10 Audio settings 11 Absolute phase 11 USB power 11 Remote 11 About 12 Software version 12 Operation time 12 Serial number 12 DAC Rev 12 T for Temperature 12 USB set up with computers 13 More information on inputs and formats 13 Connecting the CLASSIC DAC to your system 13 Operating your CLASSIC DAC 14 Nagra Modulometer 14 LED and Modulometer intensity adjustment 1...

Page 3: ...inal purchaser of new equipment This limited warranty covers the repair and replacement of defective parts excluding any other remedy The absence of a serial number invalidates the warranty We decline any responsibility for damages resulting directly or indirectly from the use of our products As we constantly strive to improve our products we reserve the right to modify them or change their specif...

Page 4: ...rformance and the company has received many awards for its technical innovations and the excellence of its products over the years Among the most prestigious Nagra has been awarded three Oscars and an Emmy Our experience precision and dedication to detail has been implemented to do service to music your music This is why we wish you many hours of listening pleasure and memorable moments enjoying y...

Page 5: ...developed by Nagra These consist of two solid aluminum isolated plates that use the same silicon base damping material as the Nagra CD mechanics These plates will eliminate any mechanical vibrations that may interfere with the sonic excellence of your CLASSIC DAC Connection block 1 Analog outputs use either RCA or XLR but not simultaneously The XLR connectors are unbalanced 2 Ground connector 3 Di...

Page 6: ...mA L Should you need to replace it only use the same fuse type Connecting the Nagra MPS Start by removing the IEC cable from its plug The mains switch position is no longer relevant when an external power supply is connected Please note that the LEMO plug features a red dot that must be facing upwards for correct insertion into the power input connector Place the front panel selector in the OFF po...

Page 7: ...here are 6 levels of intensity 2 Nagra Modulometer indicates the digital level in dB FS Full Scale 0 dB being the maximum level 3 LCD display 4 Controller knob it has several features described below 5 Main selector OFF is standby position 6 IR sensor and remote LED In standby mode the power consumption is less than 1W 3 2 4 5 6 1 ...

Page 8: ...lly integrate it in your system Please take some time to know more about the settings that you can change to enjoy more music How to access menus It is simple there is only one knob that does everything The CONTROLLER has different functions You can rotate it or press it If you push the controller and hold it for 3 seconds you will access the menus You can navigate inside the menu tree by rotating...

Page 9: ...F 1 S PDIF 2 OPTICAL USB Audio Ph Rev NORMAL Reverse USBPower AlwaysON InActive Remote RC 5 DEVICE 1 DEVICE 2 DEVICE 3 DEVICE 4 DEVICE 5 DEVICE 6 About Soft V Op Time S Number DAC Rev DAC Temp Setting the language You might want to start by setting the language First press and hold the Controller button for 3 seconds Press the Controller once then you can select the language Rotate the controller ...

Page 10: ...Controller if you wish to edit another input Let s change S PDIF 1 name The underscore appears below the letter you can change By rotating the Controller you can scroll the alphabet in the following order A Z_a z_ 0123456789 Let s select C and push the Controller to go to the next letter Once you are done simply press and hold Controller button for a few seconds This will take you back to the inpu...

Page 11: ...powering unnecessary components to be active Remote The CLASSIC DAC comes with the RCU III remote control unit This remote control unit uses standard RC 5 codes from Philips It is called RC5 in the menu However you may also control it with the classic Nagra RCU or RCU II remote control unit equipping the Nagra CD range In this case you should change the device number 1 6 here Select the desire DEV...

Page 12: ...counter cannot be reset Serial number The serial number cannot be changed or erased In the very unlikely event that your CLASSIC DAC is stolen please send us your serial number we will track this unit if it goes to a Nagra dealer DAC Rev This information is for Nagra servicing it displays the D A board internal software version T for Temperature This is the internal temperature inside the D A boar...

Page 13: ...nputs and formats The HD DAC comes with 7 different digital inputs Please find the format compatibility in the following table Input For Format AES Professional sources Up to 192 kHz 24 bits S P Dif 1 and 2 Consumer sources Up to 192 kHz 24 bits Optical TOSLINK Consumer sources Up to 192 kHz 24 bits with high quality optical fiber USB UAC2 Up to 384 kHz 32 bits or DXD DSD 2x UAC2 stands for USB Au...

Page 14: ... input level The 0 dB corresponds to full scale signal that means the maximum digital level Right channel red needle Left channel black needle LED and Modulometer intensity adjustment This two way toggle switch allows you to adjust the LED and Modulometer backlight intensity Pushing the toggle UP will increase the intensity pushing it down will lower the intensity all the way to complete extinctio...

Page 15: ...ion 1 to 6 Input A to F 32 33 Input change step up or step down 13 Mute 12 Standby Burn in period In order to obtain optimal performance from the Nagra CLASSIC DAC it is preferable to leave the device switched on for about 15 minutes before use so that the internal components can reach their optimum operating temperature The Nagra CLASSIC DAC needs a running in period It will reach peak performanc...

Page 16: ...Internal processing 5 6 MHz 6 2 MHz 72 bits Compatible digital formats PCM 24 bits up to 384 kHz DXD DSD x 2 Analog outputs 1 stereo RCA 1 stereo XLR Unbalanced Output level 1 5 V rms 0 1 V for 0 dB FS Noise level 128 dBr 1 kHz 1 3V Linear Distortion 0 02 20 dB FS THD N 0 03 192 kHz Frequency Response 10 Hz 110 kHz 0 1 3 dB Crosstalk 100 dB Interchannel phase 0 5 20 kHz Power consumption On 15 W S...

Page 17: ...nétiques EN 61000 4 3 Immunity to electromagnetic fields EN 61000 4 3 Immunité aux décharges électrostatiques EN 61000 4 2 Immunity to electrostatic discharges EN 61000 4 2 Immunité aux transitoires électriques rapides en salves sur câble d alimentation EN 61000 4 4 level 2 1000V Immunity to burst on mains line EN 61000 4 4 level 2 1000V Immunité aux transitoires électriques rapides en salves sur ...

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