Cambridge SoundWorks fps1500 User Guide

7

 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.

Satellite speaker: 

Subwoofer: 1

These specifications apply to 
FPS1500

 operating from the supplied 

13.5V 1.8A DC power adapter.

FPS1500.fm Page 7 Monday, July 10, 2000 3:47 PM