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Model 372 PBM THX
Atlantic Technology
®
THX Example:
THX Subwoofer
Out/Low Level In
Option 1 is the
most commonly
used method of
connecting two
subwoofers to a
THX system. You
may also use a Y-
adapter as shown
in Option 2.
Option 1
Option 2
L/MONO
RIGHT
LOW LEVEL
HI PASS
THRU
OUT
IN
L/MONO
RIGHT
LOW LEVEL
HI PASS
THRU
OUT
IN
THX
Sub
Woofer
Out
Single Sub Woofer
Optional Second Sub Woofer
THX Receiver/Amplifier/Processor
L/MONO
RIGHT
LOW LEVEL
HI PASS
THRU
OUT
IN
L/MONO
RIGHT
LOW LEVEL
HI PASS
THRU
OUT
IN
THX
Sub
Woofer
Out
Single Sub Woofer
Optional Second Sub Woofer
THX Receiver/Amplifier/Processor
Y-adapter
You can connect your 372 PBM THX by using a variety of connectors, or by removing 1/2" of insulation
from each wire end, twisting the strands of wire together, placing the wire through one of the post holes
and screwing down the nut tightly. We recommend that you check your local electrical codes to make
sure you are not using an improper connector.
It is important to observe polarity while making speaker connections:
red (+) terminals on the amplifier to red (+) on the speaker, black (-)
on the amplifier to black (-) on the speaker. Look carefully at the wires
you are using and note that one of the wires in each pair is marked by
either a different color, printing, ridges, or a thread intertwined with
the wire strands. By convention, the marked wire is connected to the
red (+) terminal.
Power Connection
Connect the power cord to an AC outlet only after making all other connections to the subwoofer.
This will avoid any chance of accidentally activating the subwoofer while wiring. The AC cord should
be plugged into its own wall outlet or into a quality power strip. Avoid using a switched outlet on the
rear panel of another component. The subwoofer can draw more current than these outlets can
provide and performance will suffer. Once the subwoofer is hooked up and the power switch is turned
on, leave it on. The automatic on/off circuitry will only activate the subwoofer in the presence of an
audio signal from your audio/video system. After 7-10 minutes with no signal detected from the rest of
the system, the amplifier will shut itself off and go into standby mode. When an audio signal is
present, the power LED will glow green. Power consumption in the standby mode is negligible.
Figure 2:
Speaker Wiring
Terminals
Note:
The front panel level control and the rear panel subwoofer lo-pass control must be in the THX position
for proper THX operation.
