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Atlantic Technology
®
Example 5:
Speaker Out/
High Level In for
2 Subwoofers
This is the most
common method
for connecting 2
subwoofers to a
system without a
dedicated sub-
woofer line out or
Preamp outputs.
Note that the
L/MONO High
Level input is used
on both left and
right subwoofers.
Left
Right
Main Speakers
Left Sub Woofer
Right Sub Woofer
Left Front Speaker
Right Front Speaker
Receiver/Amplifier
INPUT
LEFT
L/MONO
L/MONO
+
+
-
-
OUTPUT
INPUT
OUTPUT
RIGHT
RIGHT
RIGHT
INPUT
LEFT
L/MONO
L/MONO
+
+
-
-
OUTPUT
INPUT
OUTPUT
RIGHT
RIGHT
RIGHT
You can connect to the High-level inputs by removing 1/2" of insulation from each wire end, twisting
the strands of wire together and placing the wire into the appropriate binding post on the rear of the
woofer as illustrated. Be careful that no stray strands of wire touch across connections.
It is important to observe polarity while making speaker connections: red (+) terminals on the ampli-
fier 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 will be marked by either the con-
ductor color, printing on the wire jacket, a ridge on one side of the wire jacket, 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. Atlantic Technology
does not recommend
plugging the subwoofer into the switched outlet of an amplifier, preamplifier,
or receiver. The power demands of the subwoofer amplifier may exceed the power rating of the
switched outlet and may damage the equipment.
The T70 PBM is totally automatic in its operation. The automatic on/off circuitry will only activate the
subwoofer in the presence of an audio signal from your audio/video system. After 7-12 minutes with
no signal detected from the rest of the system, the amplifier will shut itself off and go into standby
mode. Power consumption in the standby mode is negligible. Standby operation can be completely
bypassed by placing the “Auto” switch in the “On” position. In this mode, the subwoofer will be
controlled by the position of the Main Power switch.
