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| Fathom IWSPage 26
RECOMMENDED SETUP PROCEDURES (continued)
Subwoofer System Setup:
Once you have set the controls on your home theater receiver or preamp/
processor and on your Fathom IWS(s) to the settings recommended on pages
24-25, you are ready to begin setting up your Fathom IWS for optimum
performance.
In some systems, the Fathom IWS amplier will be installed away from the
listening environment. For these cases, the ARO microphone cable will not be
long enough to perform the Calibration.
To facilitate Calibration with the Fathom IWS amplier in the listening
room, the Fathom IWS subwoofer enclosure includes front-mounted speaker
terminals (standard banana jacks - see gure). ese terminals will allow the
user to temporarily connect the amplier to the enclosure for Calibration,
even aer the enclosure is permanently installed in the wall cavity.
If your system has a Master / Slave conguration, you only need to have the
amplier designated as Master located in the listening room. You must run a
temporary XLR cable to the remotely located Slave unit(s).
1) Applying Automatic Room Optimization (A.R.O.)
You are now ready to apply the power of JL Audio’s exclusive Automatic Room
Optimization system. is system will measure the response of the subwoofer at
your primary listening seat and apply a powerful equalizer to tame the peaks caused
by room modes, resulting in smoother, more accurate bass performance. If you are
using multiple Fathom IWSs in a master/slave conguration, you will only need to
address the unit designated as “Master” to perform A.R.O. calibration for the entire
subwoofer system. Note that all front-panel signal processing is defeated during
A.R.O. calibration, regardless of the knob settings. Normal operation is restored
once calibration is complete.
a) Set the Main Power switch to the “ON” position and be sure the Fathom IWS’s
indicator lights are switched “ON” via the “Lights” switch.
b) Remove the calibration microphone from its protective pouch and connect its
cable to the mini-XLR jack on the Fathom IWS’s front control panel.
NOTE: A.R.O. Calibration is only possible when the included JL Audio test
microphone is plugged in to the Fathom IWS front panel. e “Calibrate” feature
is disabled with no microphone plugged in to prevent accidental loss of settings.
c) Connect the microphone to the other end of the mic cable and temporarily place
the mic in the primary listening seat. If you have a microphone stand, you can
place the microphone at head height and position in the primary listening seat.
d) On the Fathom IWS’s control panel, press the “Calibrate” button. e green light
on the “Calibrate” button will ash slowly, indicating that calibration will begin
in 5 seconds.
IMPORTANT