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Velodyne SC-12 Manual

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SC-1250 Amplier User’s Manual - 11
A Word About Subwoofer Placement
Subwoofers operate at extremely low frequencies, which are primarily omni-directional. Keep in mind that
frequencyresponseandoutputlevelcanbedrasticallyinuencedbyplacement,dependingontheacoustic
properties of the listening room. Typically, the optimum location for a subwoofer is in a front corner of your
listeningroom.Thislocationwillusuallyoerthegreatestoutputlevelsandoptimumlowfrequencyextension.
The worst location for a subwoofer is typically far away from any walls, close to the center of your room and near
an opening or doorway. Avoid these locations when possible. When using a pair of SC subwoofers in stereo, it
is preferable to place each subwoofer by the satellite of the same channel. Typically, a minimum distance of one
to two feet from your TV to the subwoofer will be adequate to avoid any magnetic interference.
Remember that the built-in 7 band EQ will help to get the most performance out of your subwoofer no matter
where it is placed.
Caution!
This amplier has electronics built into the cabinet. Do not place the amplier next to sources of heat such as
furnace registers, radiators, etc. Likewise, do not place the amplier near sources of excessive moisture, such as
evaporative coolers, humidiers, etc. The power cord should be routed in such a way that it will not be walked
on, pinched or compressed in any way that could result in damaging the insulation or wire.
SELECTING THE SUBWOOFER(S) TO BE CONTROLLED
Your SC-1250 can control a variety of Velodyne SubContractor Series subwoofers as well as generic passive
subwoofers.Specialinternalsoftwaresettingsaredesignedtomaximizeperformanceandreliabilitydepending
on the model of subwoofer being controlled, so it is important to match the SC-1250 amplier with the
subwoofer(s) it is controlling. The SC-1250 comes with a default setting for the SC-10 subwoofer. When the
unitisrstpoweredup,themodelbeingcontrolledisdisplayedfor2secondsonthenumericLEDbeforethe
display reverts to the volume setting. The subwoofer to be controlled is shown as follows:
** - The generic subwoofer setting is for passive subwoofers not on the above list. CAUTION: there is no anticlipping or anti-
distortion protection on this setting.
Tochangethesubwoofertobecontrolled,rstpowerdowntheamplierusingthepowerswitchontheback
panel (DO NOT use the power button on the front panel). Then, turn the switch on while depressing any of the
buttons on the front panel (crossover up or down, or volume up or down). The unit will show the model it is
currently controlling. To change the model, simply push the crossover up or crossover down buttons and the
… 17 …


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