Pass XA25 - Setup and Installation; Physical Placement and Ventilation; AC Power and Fuse Management

SET UP
The XA25 measures 17”w x 17.4”d x 6”h and weighs 45 pounds. You may place it wherever
you please, but not directly on carpet - it is going to need lots of free air for adequate cool-
ing. There needs to be space above and unobstructed space around the sides to allow for
proper air ow. This is a factor in reliable operation and long life.
The XA25 is expected to have a 25-degree C rise at the sinks when running. Under normal
operation you should be able to grasp the heat-sinks for 5 to 10 seconds without heat being
an issue. If the amplier becomes too hot to touch please contact your dealer or the factory
for assistance.
AC power is provided by a conventional detachable IEC 320 grounded AC mains power
cord. This power cord serves as the safety disconnect. The power cord should be removed
from the wall in the event of electrical storms or when the XA25 is not going to be used for
long periods.
The amplier is designed to perform well with the included power cord. Should you select
an “after market” detachable power cord, please conne your selection to those rated by
local authorities to carry a minimum of 13A at 250V.
At idle the XA25 will consume 240W from the AC mains. The required voltage and correct
fuse value will be indicated on the rear of the amplier. Both 100 Vac and 120 Vac builds
are fused at 5A. The 220 - 240 Vac build ampliers are fused at 2.5 amp.
In all instances the fuses are type 3AG slow blow (time delay) fuse rated for 250 VAC ser-
vice. Do not substitute fuses of different values or physical size. If you cannot source
equivalent replacement fuses locally, please contact your dealer or the factory.
This product ships from the factory with a replacement fuse included in addition to the
fuse installed in the chassis fuse holder. The fuse holder is located on the rear panel of
the amplier. Changing the fuse requires a close tting straight blade screwdriver, and the
power cord should be unplugged from the wall. If you are not comfortable performing
this function in the unlikely event that it becomes necessary, please contact your dealer or a
service professional.
INPUT CONNECTION
The XA25 accepts a single ended (RCA / Cinch) input connector. The input impedance is
47 Kohm making the XA25 compatible with either tube or solid state line stage pre-ampli-
ers or source components with a built-in volume control.