Troubleshooting; Possible Causes And Solutions - SpeakerCraft Ruckus 8 Sub System Owner's Manual

AMPLIFIER OPERATION (continued)
• Bass Boost Control
This control allows you to increase bass response between 50 and 100Hz for certain types of audio that lacks in bass,
such as old recordings, etc.
• Phase Control
This control allows you to match the arrival times of the sound waves of the Bass Power and the main speakers to your
listening area. While the system is playing, flip the switch to the 180º and back to 0º until the bass sounds louder or less
boomy. Depending on the subwoofer placement and room acoustics, this control may have little or no effect.
• Volume Limit Control
Use this control to adjust the maximum volume setting for your Bass Power system. With the volume limit control and
front panel volume control turned all the way down (counterclockwise), turn on the subwoofer and start playing audio
through your system. Turn the system up (not the subwoofer) to the highest comfortable level – WITHOUT DISTORTION.
Now on the front panel of the subwoofer, turn up the sub woofer volume all the way. There should be no bass playing
yet. Next SLOWLY turn up the volume limit control until the subwoofer is playing at its loudest level WITHOUT DISTORTION.
Return the system volume and Bass Power front panel volume levels to normal. Now anyone can safely turn up the
subwoofer all the way without damaging the subwoofer.

TROUBLESHOOTING

The Bass Power Subwoofer System is designed to function trouble-free. Most problems occur because of operating errors. If you
have a problem, please check the troubleshooting list first. If the problem persists, contact Tech Support at 1-800-448-0976 or
e-mail us at techsupport@speakercraft.com.
The Problem
No sound is heard.
A hum or buzzing sound is heard.
The amplifier will not turn on.
The Protection Circuit cuts in momentarily
and then returns to normal.
The Protection Circuit cuts in and does not
return to normal.

Possible Causes and Solutions

Audio cable to the amplifier is not connected properly. Check this and other system
component manuals to be sure of proper connections.
The cable is bad. Use another cable that you know is good.
Loose or frayed wires. Check for solid, clean connections on all speaker wire terminals.
Volume Limit Control is set too low. See Volume Limit Control for adjustment procedure.
The sound may be caused by a ground loop in the system. Try to eliminate this by revers-
ing the AC plugs of other components in the system.
Try plugging the amplifier into another outlet.
Other causes may include faulty cables.
There may be AC power problems. Check the AC circuit and plugs. Be sure the power
switch is turned on.
Audio cable to the amplifier is not connected properly. Check this and other system
component manuals to be sure of proper connections.
The cable is bad. Use another cable that you know is good.
Loose or frayed wires. Check for solid, clean connections on all speaker wire terminals.
The circuitry in the amplifier has detected that the amplifier is in danger of overheating.
Normally, this would happen infrequently and momentarily. If it persists, the amplifier may
need to have more adequate ventilation.
Move the amplifier to a better ventilated and/or cooler location. NOTE: The amplifier
case may feel cool at the top, but still be overheating internally. Do not use the tem-
perature at the top of the cabinet as a gauge for amplifier temperature.
There may be a fault in the wiring, the speaker, or the amplifier. Turn the power switch off
and then on again. If the amplifier immediately returns to the Protection mode, turn it off
and check all of the wiring, including all connections at the amplifier, at the subwoofer,
and any connections made to the terminals on a wall plate.
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