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User's Manual
7
To remove the rack ears, rst turn off
the amplier and remove the power
cord. Undo the three screws holding
each rack ear in place. Remove the
rack ears and keep them in a safe
place in case you need them in future.
Replace the three screws back into the
amplier and tighten securely.
7. Balanced (XLR) Input
Connect these identical balanced in-
puts to the balanced line-level sub/LFE
output of a Home Theater preamplier,
receiver, or other source.
Balanced connections offer superior
noise cancellation over unbalanced
connections. You can use either XLR
balanced, or RCA unbalanced inputs,
with XLR preferred if you have a
choice.
If your preamplier or receiver has a
single sub/LFE balanced output, con-
nect it to either of these inputs, leaving
the other one unused.
8. Line Level (RCA) Inputs
Connect these identical unbalanced
inputs with RCA type patch cords to
the line-level sub/LFE outputs of your
Home Theater preamplier, receiver, or
other source.
If your preamplier or receiver has a
single sub/LFE output, connect it to
either of these inputs, leaving the other
one unused.
If your preamplier or receiver does not
have a sub/LFE output, use “Y” adapt-
ers at the preamplier outputs. In this
way, you can send the preamplier’s
output signals to your main amplier
and to the subwoofer amplier at the
same time.
9. Trigger Inputs
This input can be used to automatically
turn on the amplier. To do this, con-
nect a 12 VDC source as follows:
Input voltage range: 2.2 - 13 VDC
Impedance: approximately 2800 ohm
(4.2 mA @ 12V)
3.5 mm mono mini-jack, tip positive
Some Home Theater preampliers and
receivers, such as the Sunre Theater
Grand series, have matching 12 VDC
Trigger outputs. When they are turned
on, the amplier will turn on.
10. Ground Terminal
This screw terminal is provided in order
to ground the amplier. In some cases,
grounding may eliminate noise due to a
ground loop in the system.
11. IR Input
This IR input can be connected to the
output of an optional external IR receiv-
er. The amplier can then be controlled
in the same way as using the remote
control and pointing at the internal IR
receiver on the front panel.
12. Service
This connector is provided for use by
Sunre service technicians only.
HRSIW8AMP
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