Velodyne SubContractor Series - Manual (Page 18)

www.velodyne.com 12 - SC-1250 Amplifier User’s Manual
model changes on the led display. once the desired model is seen on the led display, simply release the
button. you don’t need to do anything else - the model to be controlled is automatically stored in the SC-1250’s
memory. To exit model selection mode, use the power switch on the back panel to power down and power up
the unit. you should see the model you selected for 2 seconds on the led display before the display reverts to
the volume.
Using the SC-1250 to Drive Two Subwoofers
Once the model selection process is completed, no other adjustments are needed to enable the SC-1250 to
drive one or two subwoofers.
USAGE
This section addresses day-to-day usage of your SC-1250 amplifier.
Remote Control
The features of the SC-1250 remote control are listed below.
• pOwER — This button forces your SC-1250 unit into standby
mode. The power led turns amber, the numeric led shuts
off, and the amplifier puts out no power. The unit will remain
in this mode until the PoWeR button is pressed again. To fully
deactivate (i.e. power down) the unit, press the power switch
on the front panel.
Note: The master power switch on rear panel must be on in
order for the front power button to function.
• MUTE — This button mutes the subwoofer. The led on the
amplifier will show 00 if the unit is muted. To unmute the
subwoofer, press the mUTe button again and the original
volume setting shows on the led.
Figure 6: SC-1250 Remote.
• EQ — This button automatically EQs the subwoofer using a 7 band internal graphic equalizer. To use this
feature, first plug the supplied microphone into the Mic-In jack on the back panel of the subwoofer and
place the mic in your preferred listening position. Then, by pressing eQ on the remote, the subwoofer
emits 12 “sweep tones” that cover the frequencies between 20 and 150 Hz. The LED displays “AU”
during the Auto-eQ process. After the sweeps are complete, the unit saves its eQ settings and returns to
normal operation. To prevent accidental invocation of the eQ feature, you must hold down the eQ button
for 2-3 seconds before the eQ sweeps begin.
Note: Each time the EQ feature is utilized, the EQ settings for the SC-1250 are reset. If the microphone
is not plugged in, the SC-1250 will emit one or two sweep tones then cease the eQ operation. In this
case, the previous eQ settings will be preserved.
• phASE — These buttons allow you to optimize the subwoofer performance for the location and your