S i g n a l S e n s i n g A u t o Tu r n O n / O f f F u n c t i o n
With this function in the “standby” 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 “always on” position.
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 low
pass 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.)
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SPLi Series User’s Manual
LINE-LEVEL CONNECTION - OPTION A
