Velodyne Acoustics VA-806/907 User Manual

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A word about subwoofer outputs
The Velodyne subwoofer is designed to operate using the full range
audio signal for input when using the built-in crossover. Some
surround sound processors/receivers have a "subwoofer out" jack
that  is  already  crossed  over  and  designed  to  be  used  with  a
conventional amplifier and speaker. If this is the case, you should
set the low pass crossover to 150Hz.
Note
If not using an external crossover, you should use the built-in
crossover for optimal performance.
Subwoofer out from A/V
Processor
From the low pass output of your signal processor Install into right
or left RCA line in connector in the back of the subwoofer or use a
"Y" connector adapter into both right and left RCA line in connectors
in the back of the subwoofer.
Speaker-level connection
Figure 2 shows an easy way to connect your VA-806/907 subwoofer
directly to your receiver or integrated amplifier.
When connected in this fashion, your satellite speakers will be
crossed over at 85hz, which removes the lower bass from your
speakers thus, enabling them to do a better job reproducing high
frequencies.
You may also connect your satellites directly to your receiver or
amplifier along with the subwoofer if you wish to bypass the internal
high-pass crossover.
Caution!
To avoid damage to your main amplifier, be sure to maintain correct
polarity when making all connections. Red (positive) to red, and
black (negative) to black. Be sure that all connections are tight, and
that there are no loose strands or frayed wires.
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Line-level connection
Figure 1 shows connection to a pre-amplifier's main outputs and
returning them to your amplifier inputs.
When  installed  in  this  fashion,  your  satellite  speakers  will  be
crossed over at 85hz, which removes the lower bass from your
amplifier and speakers thus, enabling them to do a better job
reproducing high frequencies. By utilizing this method, you will have
a bi-amplified system, gaining improved power and headroom for
your system.
continued. . .
Figure 1: Installation using line-level (line in) inputs
MAIN OUTPUTS
RIGHT       LEFT
AMPLIFIER
MAIN OUTPUTS
RIGHT       LEFT
PRE-AMP
TO SATELLITE SPEAKERS
MAIN  INPUTS
RIGHT       LEFT
WARNING:
AVIS:
CAUTION!
CAUTION!
CAUTION!
CAUTION!
CAUTION!
FREQUENCY
VOLUME
PHASE