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Application Example #3
This example shows a two-channel (stereo) setup utiliz-
ing two subwoofers and two top-boxes.
Audio signals for the Left and Right channels are supplied
by the mixer console. This signal source can be just about
any variable-output level audio source, such as DJ mix-
ers, professional CD players, or computer-based audio
signal sources.
Audio output from the mixer is connected to the sub-
woofer input of each channel. Each subwoofer’s FULL
RANGE LINE OUT connector is used to connect to its
respective top-box. Turn ON the top-box’s 100 Hz LOW-
CUT FILTER.
Alternately, the top-boxes could be connected to the sub-
woofer’s 100 Hz LOW-CUT OUT and the top-box 100 Hz
LOW-CUT FILTER turned off. The only possible issue with
this method of connection is unexpected noises (turn-off
thumps) if the subwoofer is powered down before the
top-boxes. If connected as shown, power sequencing is
not an issue.
Application Example #3 physical diagram.
Application Example #3 hookup diagram.
Use only high-quality balanced cables for
interconnecting the audio equipment.
Ensure the top-boxes have their 100 Hz LOW-
CUT FILTER switched ON when connecting
to the subwoofer’s FULL RANGE LINE OUT as
a signal source.
Also, be sure to use either the Left or Right
(marked L or R) on the subwoofers. If the
subwoofer’s input is connected to the Right
(R) channel connector and the output to the
top-boxes is connected to the Left (L) chan-
nel connector, no signal will reach the top-
box (no sound from the top-box).
Mixer or Other Audio Source
Channel 1 or Left Channel
Channel 2 or Right
Channel
HPR122i, HPR152i, or HPR153i
HPR151i or HPR181i
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