Configuring Your Speaker System
Before you start plugging in cables, you should take a minute to decide how you
want to interface your new Auro D1200. Most system set-ups fall into one of two
categories: Stereo or Mono sub operation.
Mono Sub Operation
In most cases, a common (mono) sub
bass setup is preferable. Low frequencies
produced by a subwoofer tend to be non-
directional. Since low frequency waves take
so much space to develop, it is difficult for
the ear to tell if sub bass is coming from
the left or right side (unless, of course
you're in a very large room). Because of this
phenomenon, just about all sub bass mate-
rial is mixed in mono.
Follow the steps below for a system set-up
using the D1200 with a mixer and a pair of powered satellite loudspeakers.
• Lower your mixer's master outputs until they are turned off.
• Connect the mixer's left output to the D1200 left (A) LINE INPUT, and the mix-
er's right output to the D1200 right (B) LINE INPUT.
• Connect the D1200 left (A) THRU output to the line input of the left side pow-
ered satellite, or power amplifier (if using passive speakers) and the D1200 right
(B) THRU output to the line input of the right side satellite or power amplifier (if
using passive speakers).
• Set the level of your powered satellites up to normal operating level. Run an
audio signal (such as music from a CD) through your mixer, and raise the level to
a comfortable listening volume.
• Slowly raise the D1200 Level control and adjust the D1200 GAIN control to the
desired low frequency output.
• When you raise and lower your mixer's output, the D1200 and satellites will track
at the same relative volume.
Auro D1200 Active Subwoofer
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