User`s guide

12
FPS1500 has high input sensitivity,
so it may amplify the hum and hiss
inherent in some audio program
sources.
This noise is not due to a fault in
the speaker system. You can
minimize this background noise by
following these guidelines:
❒
Decide which volume control
you would like to use as the
master level control: the
FPS1500 volume control or the
program source’s volume
control.
If you choose to use the
FPS1500 volume control, first
set the program source’s volume
control high (at least 70% of the
maximum level). Where there is
more than one software level
control, set all volume controls
high. Then leave the controls.
Use the FPS1500 volume control
to adjust overall output.
If you choose to use the program
source’s volume control, first set
the program source’s volume
control high (at least 70% of the
maximum level). Then adjust the
FPS1500 volume control until
the distortion is inaudible. Set
the FPS1500 volume control
aside. Use instead the program
source’s volume control to adjust
overall output.
❒
Adjust the output control of your
audio card until the noise
disappears. This may require
trial and error.
FPS1500
Four-Channel Amplifier
Satellite speaker: 6 watts RMS
per channel
Subwoofer: 17 watts RMS
These specifications apply to
FPS1500 operating from the
supplied 13.5V 1.8A DC power
adapter.
Controlling Noise and Distortion
Specifications