Amplifier operation, Front panel controls – OSD Audio SMP-250 User Manual
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outs to another device. (See the Line Lever Outputs section below.)
.Speaker Lever Inputs (Left & Right) – These inputs can be used if your receiver does not have a subwoofer output or a set of
line output jacks. Being sure to observe proper polarity, connect the left and right pair of main speaker output wires from your
amplifier or receiver to the speaker level input terminals of the Bass Power amplifier. Then connect a left and right pair of
speaker wires from the Bass Power speaker level output to your main speaker terminals. (See Speaker Level Output section
below)
3. Connecting the Audio Outputs (optional)
.Line Level Outputs (Left & Right) – Sources connected to the line level inputs can be forwarded to other receivers or
amplifiers line level inputs. By doing this you can pass-on the audio signal for use by another component. Connect RCA cables
to the line lever output sections of the Bass Power and the Line level inputs of a receiver or amplifier.
.Speaker Level Outputs (Left & Right ) –Connect a left and right pair of speaker wires from the Bass Power speaker outputs
terminals to your main speakers. The main speakers will still be powered by your system’s receiver or amplifier.
4. Dual Voltage Switch (See Diagram 2)
For use in the U.S., the Bass Power cones preset from the factory at 115V. For use in other countries, the voltage switch may
need to be changed to 230V. (Please note that a plug adapter or alternate power cord may be required.)
DIAGRAM 2
Dual Voltage Switch
4. Connecting the AC Power
Plug the socket of the supplied AC cord into the receptacle on the rear of the amplifier. Plug the 3-prong plug
directly into a wall outlet. If you wish to plug the amplifier into a preamplifier or receiver’s switched outlet, make
sure it is rated at least 600watts. However, it is always safer to plug the Bass Power directly into an AC outlet.
AMPLIFIER OPERATION
Please use Diagrams 1＆3 to familiarize yourself with the front and rear panels of the subwoofer Power.
CAUTION: please read all the following instructions to prevent causing damage to your system.
Front Panel Controls
Power Switch
The switch marked “power” on the front panel of the amplifier will turn off all amplifier circuitry including Auto
sense circuitry.
l Volume Controls
Use this to match the output level of the subwoofer to that of the main speakers in the system. We recommend that
you play a variety of material before selecting a setting. Start with the control turned completely counterclockwise
(off) and slowly turn it up. NOTE: Turning the volume up slowly will prevent possible damage to the woofer from
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