Infinity Alpha Junior Manual Del Usuario página 7

Set controls...
Power on...
Adjust volume...
Crossover frequency
control...
Room placement...
Operation
1. Initially set the subwoofer's Volume control to the minimum position.
2. Initially set the subwoofer's Crossover Frequency control to 6 o'clock.
3. Turn on your entire audio system and play any music source.
4. Turn the Volume control to its mid-position. 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?
5. Set the overall volume control of the preamplifier or stereo to a comfortable level.
Adjust the subwoofer's Volume control 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, following 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; otherwise, 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 is never obtrusive.
6. The Crossover Frequency control sets the high-frequency roll-off, adjustable from
45 to 130Hz. Where you set this control depends on the low-frequency capabilities
of your satellite speakers, system placement, and other factors affecting the mid-
bass region. Turn the control UP (clockwise) until you feel there is too much mid-
bass information (around 100Hz) then back the control down a bit until that area
sounds more natural. To hear more low bass, turn the Crossover Frequency control
DOWN a bit and the Volume control UP by about the same amount. This will
increase low bass while leaving the mid-bass sounding the same as it did before the
adjustment. To reduce low bass without changing mid-bass, turn the Crossover
Frequency control UP and the Volume control DOWN.
7. Room placement of the subwoofer is the most critical aspect of its installation. It will
be necessary for you to try various locations in your listening room before you
choose the final location. Some possible starting points include: behind the right
channel satellite speaker, along the back wall between the satellites, along a side
wall (but not too close to a corner), or behind a couch or a chair.
In general, the closer the subwoofer is to walls and corners, the greater the effect
of low frequency enhancement. Experiment with the Crossover Frequency and
Volume controls in different locations until you are pleased with the result you obtain
from your particular application.
Alpha Junior Subwoofer – Owner's Manual N 7