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Nagra – 

Classic PSU 

 

 
 

Safety warning 

 

 

Read this manual carefully before operating the CLASSIC PSU; 

 

Please contact your Nagra dealer, should you have any questions on 
how to setup or the use of your CLASSIC PSU,; 

 

Audio Technology Switzerland SA declines any responsibility in the 
event of an accident caused by the non-observation of these 
instructions or any other form of user negligence; 

 

There are no user adjustments inside the CLASSIC PSU, do not attempt 
to open it. 

Warranty 

Audio Technology Switzerland SA, certifies that this device has been inspected 
and tested before leaving our factory. 
 
Every Nagra unit goes through our test laboratory. The measurement results are 
recorded in the “Protocol” documentation that comes with the device. 

 
We guarantee our products against all manufacturing defects, for a period of 
three years, starting from the date of delivery to the customer (validated by the 
serial number on the device casing and the invoice from an official Nagra dealer). 
This warranty is only valid for the original purchaser of new equipment. 
 
This limited warranty covers the repair and / or replacement of defective parts 
and labor. 
 
The absence of a serial number invalidates the warranty. 

 
We decline any responsibility for damage 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 specifications without notice. 
 
 

 

 

 

 

Disposal of old electrical & electronic equipment (Applicable in the 
European Union and other European countries with separate 
collection systems). 
This symbol on the product or on its packaging indicates that this 

product shall not be treated as household waste. Instead it shall be 
handed over to the applicable collection point for the recycling of 
electrical and electronic equipment. By ensuring this product is 
disposed of correctly, you will help prevent potential negative 
consequences for the environment and human health. The 
recycling of materials will help to conserve natural resources. For 
more detailed information about recycling of this product, please 
contact your local authority, your household waste disposal service 
or the shop where you purchased the product. 

Applicable to the following devices: CLASSIC PSU power supply. 
 

Summary of Contents for Classic PSU

Page 1: ...P N 2055050159 All rights reserved 06 2018 Classic PSU Super cap power supply User manual ...

Page 2: ...cting the mains 6 Which output to use 7 Connecting your Nagra gear to the CLASSIC PSU 7 Fuse replacement 7 Operating the CLASSIC PSU 8 Nagra Modulometer 8 LED and Modulometer intensity adjustment 8 Remote control 8 Starting the CLASSIC PSU using the trigger input 10 Using the trigger outputs 10 Case cleaning 10 Technical specifications 11 EU Declaration of conformity 12 ...

Page 3: ...of new equipment This limited warranty covers the repair and or replacement of defective parts and labor The absence of a serial number invalidates the warranty We decline any responsibility for damage 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 specifications without notice Dispos...

Page 4: ...search and Development department Nagra has launched a Hi Fi range to allow a wider public to benefit from technical advances that are often the privilege of the professionals The CLASSIC PSU will enhance your Nagra system and allow you to access better sonic performance and enjoy your music more Thank you for your confidence Package contents Besides this manual and the CLASSIC PSU itself the box ...

Page 5: ...luminum plates using the same silicon base damping material as the Nagra CD mechanics Feel free to contact your Nagra dealer for more information it is not advised to place other Nagra units above or below the CLASSIC PSU as it features a large transformer It is preferable to use a separate shelf for other devices Connection block 1 Main switch I for On O for Off 2 Fuse holder 3 IEC socket for mai...

Page 6: ...stands for Remote ON 4 Modulometer indicates Mains voltage 5 Modulometer and LED brightness selector Connecting the mains Place the front panel selector in the OFF position marked O Insert the IEC cable into the connector on the rear of the Nagra CLASSIC PSU You may then push the mains switch to the I position 2 1 3 4 5 ...

Page 7: ...se note that the LEMO plug features a red dot that must be facing upwards for correct insertion into the power connector When inserting the cable you will hear a click This indicates that the plug is securely locked To disconnect the DC cable hold the indicated ribbed section of the plug and pull backwards Fuse replacement The fuse holder includes a replacement fuse the one on the left The fuse ty...

Page 8: ...eter The Nagra Modulometer was inherited from the second recorder developed by Nagra back in 1952 the Nagra II The Modulometer is a precision modulation meter that displays the necessary information to perform the best possible recording In the case of the CLASSIC PSU the Modulometer indicates the mains power voltage Depending on your country the nominal voltage will vary from 100 to 240 V Should ...

Page 9: ...anel board on the right hand side 0 position is for Philips RC 5 format 1 to 6 is to use Nagra RCU and RCU II device number simply turn the selector to the number you wish the CLASSIC PSU to respond to Using a universal remote with the CLASSIC PSU Place the selector shown above on the 0 position The CLASSIC PSU will respond to IR signals coded in Philips RC 5 format The CLASSIC PSU is allocated a ...

Page 10: ...u connect a jack on the REM connector it will override the Infra Red remote control Using the trigger outputs See the following picture for cabling of the 1 8 jack CLASSIC PSU Tip and ring AMP On Connected AMP Off Open The outputs will be activated at the end of the powering sequence to avoid any clicks that sometimes occur at start up When powering down these outputs will be turn off first Case c...

Page 11: ... load 10 Hz 500 kHz 20 μV maximum Full load 10 Hz 500 kHz Home automation input output 1x 3 5 mm jack connectors 3x 3 5 mm jack connectors Input command Output switching by relay Mains power 100 115 120 127 230 or 240 VAC 10 Power consumption Maximum 100 W In standby 1W Dimensions 280 x 350 x 76 mm Excluding connectors L x W x H 12 x 13 7 x 3 inches Excluding connectors Weight 7 5 Kg 15 4 lbs With...

Page 12: ...12 Nagra Classic PSU EU Declaration of conformity ...

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