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HD AMP
OWNER MANUAL
RELEASE ©2019

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Summary of Contents for Nagra HD AMP

  • Page 1 HD AMP OWNER MANUAL RELEASE ©2019...
  • Page 2 /// Dear music lover Congratulations! You have just acquired one of the best amplifiers ever built. The HD AMP was created by an engineering team with more than 60 years’ experience designing world-class products for the professional audio, national security and military markets. The professional and Hi-Fi product ranges are designed by the same Research and Development department.
  • Page 3 SUMM A RY Safety warnings Warranty Package contents INSTALLATION OF YOUR HD AMP Positioning the HD AMPs Moving the HD AMPs around Fuse type Input panel Output section OPERATING THE HD AMP Switching ON Troubleshooting More details on what is being monitored...
  • Page 4: Warranty

    Make sure you have the correct operating voltage before switching your amplifier on. • The HD AMP is CLASS I equipment. It is essential that it is connected to a MAINS socket outlet with a protective earthing connection.
  • Page 5: Front Panel

    DO NOT block the intake or outlet ventilation holes; make sure to leave space behind the amplifier for the warm air to evacuate properly. If you have a thick carpet, it is essential to place the HD AMP on a stand to allow an uninterrupted air intake and Status LED optimal thermal dissipation.
  • Page 6: Rear Panel

    If your source has any DC component, make sure to place the filter in the ON position. If you use a Nagra source, you can leave it OFF. When changing this setting, it is necessary to power OFF - ON the amplifier (Mains switch on...
  • Page 7 Remote connection The HD AMP has 1x 3.5mm (1/8” ) stereo jack socket IN (to connect a master device) and 1x 3.5mm (1/8”) stereo jack socket OUT (to connect a slave device). It allows you to switch...
  • Page 8: Troubleshooting

    In some instances, the HD AMP might turn off to protect itself, or your loudspeakers. In this case, turn the Mains switch to OFF (O) on the back of the unit, wait for 2 minutes and turn it ON (I) again.
  • Page 9 A DC (direct current) component generated from the amplifier could damage your loudspeakers. If a DC component of more than ± 2.5V appears on the output of the HD AMP, the front LED will blink fast in red and the amplifier will shut down. Thermal problem If the amplifier runs too hot, it will shut down automatically.
  • Page 10: Technical Specifications

    90-110V or 50 - 60 Hz 110-132V or 207-264V Weight 56 kg (123.4 lbs) Net weight Size 23.8 x 64.4 x 54.2 cm Width 9.3 Height 25.3” Depth 21.3” MADE IN SWITZERLAND MANUFACTURER AUDIO TECHNOLOGY SWITZERLAND © NAGRA // EDITION 2019...
  • Page 11 nagraaudio.com...

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