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When installed in this fashion, your satellite speakers will be crossed over at 80Hz which
removes the lower bass from your amplifier and speakers, 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.
Subwoofer outputs
The Velodyne subwoofer is designed to operate using the full range audio signal for input
when using the built-in crossover. Some processors/receivers, have a "subwoofer out" jack
that is internally filtered and designed to be used with a conventional amplifier and speaker.
In some rare cases, combining both an external crossover and the one internal to the
subwoofer may result in low output and increased noise. In these installations you may
need to bypass the internal crossover in either the processor or Velodyne subwoofer. In
some installations, simply setting one crossover to a higher frequency (such as 120 Hz) will
restore maximum performance. To bypass the subwoofer's internal crossover when the
unit is being fed a low pass signal from another crossover, simply locate the switch marked
X-over, OUT - IN on the rear panel of the subwoofer and set to the OUT position. This
will eliminate the internal crossover from the signal path.
Note. . .
If not using an external crossover, you should use the built-in crossover for
optimal performance.
Interconnect cables
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When installing your new Velodyne subwoofer using the line level connections, you should
always use shielded phono cables. There are many decent cables available today, most any
of which will work perfectly well. We do recommend that you keep the length of cable as
short as possible to avoid any potential noise problems.
When routing cables, try to keep them away from equipment which generates significant
noise such as industrial or digital equipment.
NOTE: Two AAA batteries are required & included for operation. If the remote
control operating range deteriorates, please check batteries for deterioration.
Do not leave remote placed on heat generating items, such as amplifiers.
Line-level connection
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Figure 1 shows connection to a pre-amplifier's main outputs and returning them to your
amplifier inputs.
continued. . .
Figure 1: Installation using line-level inputs
AMPLIFIER
MAIN OUTPUTS
RIGHT LEFT
TO SATELLITE SPEAKERS
PRE-AMP
MAIN OUTPUTS
MAIN INPUTS
LEFT RIGHT
RIGHT
LEFT
VELODYNE ACOUSTICS, INC.
Serial # Label
U.S. Patent # 4,727,584 & 4,573,189
117 V
~
60 Hz
10 A
RISK OF ELECTRIC SHOCK
DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR
CAUTION!
X-OVER
POWERPHASE
0 ° - 180 °
OUT - IN
AUTO - ON
SENSOR
SUBSONIC
20z - 35Hz
REMOTE
INPUT
80Hz
HIGH-PASS
OUTPUT
SUBWOOFER
VOLUME
MIN MAX
LOW-PASS
CROSSOVER
120 Hz
40 Hz
80 Hz
SERVO
HGS-SERIES
WARNING: TO REDUCE THE RISK OF
FIRE OR ELECTRIC SHOCK DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE
L
R
TANDEM 3" PUSH-PULL MOTORS
•
310 oz. MOTOR STRUCTURE
•
PATENTED HIGH GAIN SERVO
•
CAUTION:
UNPLUG UNIT BEFORE MOVING
65
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