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w w w . v e l o d y n e . c o m
VMS User’s Manual
C r o s s o v e r S w i t c h - I N T E R N A L X - O V E R / S U B W O O F E R D I R E C T
This switch allows the internal crossover circuitry to be removed from the signal path. This is
required in certain installations which route the signal through external processors with a
crossover circuit of their own, such as the new digital units. Simply move the switch to
SUBWOOFER DIRECT
to disengage the built-in crossover. For all other installations which do
not have a separate electronic crossover, we recommend you leave the switch set to
INTERNAL X-OVER
to provide optimum performance.
A u t o Tu r n o n F u n c t i o n
With this function in the “auto” position, your subwoofer can be safely left with the main power
switched on continuously. The subwoofer will turn itself on automatically when an audio signal
is present. If no signal is present for approximately 10 minutes, the unit will switch to standby
mode. While in standby mode, your subwoofer will draw very minimal power. This function can
be disabled by leaving the switch in the “inactive” position.
Warning:
If the Sub-Out channel signal level from your receiver is too weak, this feature will not operate
properly. See VOLUME CONTROL section on previous page.
P o w e r S w i t c h
The master power switch is located on the lower half of the unit. This rocker style switch is the
main on/off for the unit. This switch should be set to position 1 (up) for on, and 0 (down) for
off. If the unit is to be left unused for an extended period of time, the master power switch
should be turned off.
S u b w o o f e r O u t p u t s
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 filtered
signal from another crossover, simply locate the switch marked INTERNAL
X-OVER/SUBWOOFER DIRECT on the rear panel of the subwoofer and set to the SUBWOOFER
DIRECT 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.
Figure 1 shows connection from your home theater receiver to the LFE input on the back of
your subwoofer. When the subwoofer is installed in this fashion, all of the low frequency
information from your “LFE Out” or “Subwoofer Out” on the back of your receiver will pass into
your Velodyne subwoofer. This connection is the most common connection method when using
your subwoofer with a 5.1 receiver. (Cable needed: 1 mono RCA cable.)
Line-Le v el Connection - Op tion A
