Installing And Connecting; Mains Power Connection - NAIM NAC-N 272 Reference Manual

Your NAC-N preamplifier should be installed on an equipment stand intended for the purpose. Do not stand it directly on top
of another item of equipment. Ensure it is well ventilated. Care should be taken to ensure that it is level. It should be installed
in its final location before connecting cables or switching on. NAC-N preamplifiers have no standby mode and are intended
to be left switched on.
Connecting your NAC-N preamplifier to mains power and to a variety of audio peripherals and sources is described in the
following paragraphs. Diagram 2.11 illustrates connection sockets and control features.

2.1 Mains Power Connection

NAC-N 172 XS
Connect your NAC-N 172 XS to a mains power supply using
either the mains cable supplied or a Naim Power-Line.
NAC-N 272
The NAC-N 272 can either be connected directly to a mains
power supply or, for improved performance, powered by an
external XP5 XS, XPS or 555PS power supply.
If your NAC-N 272 is to be connected directly to a mains
power supply, insert the supplied power supply upgrade
link plug in the rear panel Burndy socket and connect the
NAC-N 272 to the mains supply using either the mains cable
supplied or a Naim Power-Line. Do not switch on the
NAC-N 272 until all its other connections are made.
If your NAC-N 272 is to be powered by an external power
supply, the power supply upgrade link plug is not required.
Instead, connect the external power supply to the
NAC-N 272 power supply upgrade socket using a Naim
SXPS Burndy power supply cable. The NAC-N 272 should
not be connected directly to mains power when an external
power supply is used.
Note: Your local local Naim retailer or distributor will be
able to supply an SXPS Burndy cable if required.
The power supply should be switched off while connection
is made and remain switched off until all other NAC-N 272
connections are made.
Important: XPS power supplies with serial numbers below
188015 are not compatible with the NAC-N 272 and
should not be used. Contact your local Naim retailer or
distributor for more information.
The NAC-N 272 rear panel mains switch has no function
when an external power supply is connected.

2. Installing and Connecting

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