Velodyne SPL-800i, User Manual

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4 - SPL-800i User’s Manual
Auto Turn on Function
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 minimalpower. This function can be disabled by leaving the switch in the “on” position.
Power Switch
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.
Subwoofer Outputst
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 XOVER/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 builtin crossover for optimal performance.