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InWall Subwoofer System
Remote Control Functions
When using the latest discrete digital electronics we recommend
setting the subwoofer amplifier’s BASS LEVEL control to its THX/
REF position and using the Processor/Receiver’s built-in subwoofer
level control. Should you have difficulty achieving the correct
subwoofer volume this way or should your Processor/Receiver not
have a subwoofer level adjustment built in, you can use the subwoofer
amplifier’s main BASS LEVEL control to make this adjustment.
Level Setting Without an SPL Meter
If you decide not to use an SPL meter try to set all the speaker levels
the same using the Test Tones. Of course, this will be much more
difficult without the meter, especially for the subwoofer.
Setting the Subwoofer Level Without an
SPL Meter or Test Tones
Start your listening with the subwoofer LOW PASS control set at the
correct crossover point (or in the THX/EXT position if you’re using
a THX Certified processor or unit with a built-in crossover). Set the
PHASE control to 0°, and the front panel BASS LEVEL control to the
THX/REF position
as shown to the left.
Play some music that
you know has good
bass content, and
turn the Processor/
Receiver’s level control up until you just start to hear the subwoofer
working. Now, from your normal listening position, determine
whether the subwoofer is playing loudly enough and filling in the
bass frequencies of the music evenly. If adjustment is necessary,
change the processor’s setting or use the front panel BASS LEVEL
control if your processor lacks a subwoofer level adjustment.
How Much is Enough?
Sometimes people prefer more bass impact for movies than sounds
natural when reproducing music. Since you have the 4 EQ settings
plus the LEVEL TRIM, it’s now a snap to adjust the subwoofer to
compensate for any variations in the source material. Remember
however, the most common error people make when setting up their
system is to play the subwoofer (and surrounds) too loudly. Should
you desire the most accurate overall reproduction, a well balanced
sound from deepest bass to highest treble is the best way to get it.
Have fun. Experiment. Enjoy.
Remote Control Functions
There are 4 custom EQ settings that have been programmed into
your subwoofer amplifier (see graphs on back cover). These have
been chosen to enhance your enjoyment of both movies and music.
These EQ settings are fairly subtle, as we wanted to make them truly
useful with a wide selection of software. They are accessed by using
the four EQ buttons on your Remote Control.
EQ1
This EQ was designed to en-
hance music. It actually reduces the
midbass of the subwoofer by a
small but noticeable amount. You
will find that with most music this
tends to make the bass sound
tighter and more defined. It should
make individual bass notes easier to hear as well. EQ1 can also be
used to remove some “boominess” from the bass when playing par-
ticularly bass heavy material.
EQ2
This EQ was programmed to enhance the impact and “punch”
of special effects. It consists of an increase in the bass response cen-
tered around 60Hz. Depending upon the source material, EQ2 could
also be used to fill in a bass shy music recording.
EQ3
Another choice primarily intended to enhance movie and video
soundtracks. This one uses a more subtle increase of bass output
centered at 80HZ with the addition of a very low frequency filter.
This gives you the option of punching up the mid-bass while at the
same time reducing the possibility of overdriving the woofers with
extreme low frequencies.
EQ4
We call EQ4 “After Dark.” Our ears are less sensitive to the fre-
quency extremes (deep bass and very high sounds) at lower vol-
ume levels. In order to compensate during those times when you
must play the system at lower volume levels, EQ4 has been designed
to raise the overall bass output of the sub slightly. The result will be
a fuller and richer sounding bass at low volumes levels. EQ4 is de-
signed to enhance both music and movies. It can also help if you
have a low bass problem at the listening position.
REF
This resets the EQ to flat response and the volume trim to 0dB.
LEVEL TRIM and MUTE
The ▼
and ▲ buttons let you change the
total output level of your subwoofer
to compensate for soundtrack
variations and your personal pref-
erences. Each push of the button re-
sults in a 1dB change above or below the preset reference level set
with the BASS LEVEL control. The LEVEL TRIM readout on the
amplifier indicates the level of adjustment numerically.
Pressing the MUTE button turns off the volume of the subwoofer.
Pressing it again returns the volume to its previous setting.
Direct Access Connector
Located on the rear panel, this port and the corresponding male
plug (included and installed in the port) is for use with a hard wired
remote control system using electronic or mechanical switching.
Each contact function is labeled. To access the control functions use
a normally open connection. Momentary closure will activate each
function. The LEVEL TRIM function will respond in 1dB steps to a
single contact closure while constant closure will result in continu-
ous steps to the maximum of + or – 10dB. The REF EQ and REF
volume reset functions each have their own set of contacts.
PHASELOW PASS
0 270
90 180 80
50 150
THX / EXT
BASS LEVEL
MIN MAX
THX / REF
EQ1 EQ2 EQ3
EQ4 REF
TRIM
TRIM
MUTE