OSD Audio SMP-250 User Manual
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the system being run too “hot”. Very little movement of the knob is needed.
CAU T I ON:
if a popping sound (clipping) is audible through the subwoofer, it is being over drive, reduce
the volume of the amplifier, or speaker damage may occur! (See Volume L imit Control for proper
adjustment of volume settings to avoid distortion damage.)
L ow Pass Filter
Use this control to adjust the upper frequency limit of the subwoofer Power. T he purpose is to control the overlap of
the subwoofer Power’s upper frequencies and the main speaker’s lower frequencies. If adjust well, this allow
seamless blending of the subwoofer with the speakers.
Phase C ontrol
T his 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 180! and
back to 0! until the bass sounds louder or less boomy. Depending on the subwoofer placement and
room acoustics, this control may have little or no effect.
DI AG RA M 3
Subwoofer front panel
"
R ear Panel C ontrol
.Volume L imit C ontrol
Use this control to adjust the maximum volume setting for your subwoofer power system. With the level
control and front panel volume control turned all the way down (counterclockwise), turn on the subwoofer
and start playing audio through your system.
T R OUBLE SH OOT I NG
T he 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
T he pr oblem Possible C auses and Solutions
No sound is heard.
Audio 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.
L oose or frayed wires. Check for solid, clean connections on all speaker wire terminals.
Volume L imit Control is set too low. See Volume L imit Control for adjustment procedure.
A hum or buzzing sound is heard.
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.
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