Mounting The Nxamp In A Rack (Grounding, Shielding & Safety Issues) - Yamaha Nexo NXAMP4X4 User Manual

Mounting the NXAMP in a rack (Grounding, shielding & safety issues)
The NXAMP Powered TDcontroller is intended for rack mounting. The only accessible part
during use shall be the front panel of the unit. Any space above or under the TDcontroller
shall be obstructed with a blank panel.
The rack is a free grounding and shielding structure and it provides extra shielding.
Therefore, it is desirable that the screws used to fix the NXAMP Powered TDcontroller in the
frame or rack provides an electrical contact between the chassis of the TDcontroller and
the rack.
The primary reason for grounding is safety. Conformance to the applicable requirements of
the authorities having jurisdiction is, of course, mandatory. However, grounding also has
an impact on electromagnetic compatibility. From the EMC point of view, it is desirable to
have a low impedance ground network, as a current flowing in the ground network will
then produce low voltage in the network. A low impedance network can be obtained using
a multipoint ground scheme, with as many closed ground loops as is economically possible.
Because of the amplifier weight, it is mandatory to fix the amplifier both from the front
panel and from the rear ears. The picture bellow shows the dimensions between the rack
holes on the front panel.
SETTING-UP ADVICE
NXAMP4X1 rack holes position
NXAMP4X4 rack holes position
PAGE 22 OF 91