User manual Infinity INFINITY BETA SW-12

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SW-12 (120V) OM  
1/15/04 4:20 PM Page 7  
Power On  
Plug your subwoofer’s AC cord into a wall outlet.Do not use the  
outlets on the back of the receiver.  
Crossover Adjustments  
NOTE: This control will have no effect if the Normal/LFE Selector  
Switch §is set to“LFE.”If you have a Dolby Digital or DTS  
processor/receiver, the Crossover Frequency is set by the  
processor/receiver. Consult your owner’s manual to learn how  
to view or change this setting.  
Initially set the Subwoofer Level (Volume) Control ªto the  
Turn on your sub by pressing the Power Switch on the  
rear panel.  
Auto On/Standby  
The Crossover Adjustment Control determines the highest  
frequency at which the subwoofer reproduces sounds. If your main  
speakers can comfortably reproduce some low-frequency sounds,  
set this control to a lower frequency setting, between 50Hz  
and 100Hz.This will concentrate the subwoofer’s efforts on the  
ultradeep bass sounds required by today’s films and music. If you  
are using smaller bookshelf speakers that do not extend to the  
lower bass frequencies, set the Crossover Adjustment Control to  
a higher setting, between 120Hz and 150Hz.  
With the Power Switch in the ON position, the Power  
Indicator LED will remain backlit in red or green to  
indicate the On/Standby mode of the subwoofer.  
RED = STANDBY (No signal detected,Amp Off)  
GREEN = ON (Signal detected,Amp On)  
The subwoofer will automatically enter the Standby mode after  
approximately 10 minutes when no signal is detected from your  
system.The subwoofer will then power ON instantly when a  
signal is detected. During periods of normal use, the Power  
Switch can be left on.You may turn off the Power Switch ‹  
for extended periods of nonoperation, e.g., when you are away  
on vacation.  
Phase Control  
The Phase Switch determines whether the subwoofer  
speaker’s piston-like action moves in and out with the main  
speakers, 0,˚ or opposite the main speakers, 180˚. Proper phase  
adjustment depends on several variables such as room size,  
subwoofer placement and listener position.Adjust the phase  
switch to maximize bass output at the listening position.  
Adjust Gain  
Turn on your entire audio system and start a CD or movie  
soundtrack at a moderate level.Turn up the Subwoofer Level  
Volume) Control ªabout half way. If no sound emanates from  
the subwoofer, check the AC-line cord and input cables. Are the  
connectors on the cables making proper contact? Is the AC  
plug connected to a“live”receptacle? Has the Power Switch ‹  
been pressed to the“On”position? Once you have confirmed that  
the subwoofer is active, proceed by playing a CD, record or  
cassette. Use a selection that has ample bass information.  
Set the overall volume control of the preamplifier or stereo to a  
comfortable level. Adjust the Subwoofer Level (Volume) Control ª  
until you obtain a pleasing blend of bass. Bass response should  
not overpower the room but rather be adjusted so there is a  
harmonious blend across the entire musical range. Many users  
have a tendency to set the subwoofer volume too loud,  
adhering to the belief that a subwoofer is there to produce lots  
of bass.This is not entirely true.A subwoofer is there to enhance  
bass, extending the response of the entire system so the bass  
can be felt as well as heard. However, overall balance must  
be maintained or the music will not sound natural. An  
experienced listener will set the volume of the subwoofer so  
its impact on bass response is always there but never obtrusive.  

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