5
Nagra –
HD DAC
Installation
Positioning
In order to avoid risks of fire and electric shock, the HD DAC should be used
exclusively indoors.
If possible, it is preferable not to place other HiFi elements on top of your HD DAC
and free access to the ventilation holes, located under the device and on the top
surface (above the tube), must be maintained at all times to allow sufficient
natural cooling during operation.
The Nagra HD DAC must be placed on a stable horizontal surface. We strongly
recommend the use of the special anti-vibration support plates, HD VFS, 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 HD DAC.
Powering the HD DAC
The HD-DAC has a unique powering system, with totally independent supply
sources for the digital and analog portions of the electronics. This dual powering
system was developed to eliminate any interference between the different
elements and guarantee an uncompromising audio transparency.
There are two methods of powering the HD DAC; the first uses two individual
ACPS stand-alone power units, the second uses two outputs of the Nagra MPS
unit.
Connecting the ACPS II modules
Verify that the main selector on the front panel is in the OFF position. Insert the
LEMO plug from each the ACPS II power supplies into the Analog and Digital
LEMO DC input connectors on the right side of the rear panel.
The LEMO plug features a red dot that must be facing upwards for
correct alignment with the socket and insertion into the power input
connectors.
You will hear a distinct “click”, indicating that the plugs are securely
locked in place.
