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Installation and
JBL
Calibration
Sides
Rears
Subwoofer Output
Subwoofer Frequency Response
This menu sets the system for your particular side speaker configuration.
Systems with side speakers should be designated as STANDARD (LARGE
or SMALL) or DIPOLE (LARGE or SMALL). DIPOLE indicates a THX
speaker configuration, and causes the unit to mute the rear outputs when
the THX effect is used. When STANDARD SMALL or DIPOLE SMALL is
highlighted, press SELECT to display and adjust the highpass filter for the
side outputs. Choices are: 80, 100 or 120Hz.
Selecting NONE mutes the side outputs and disables any effect parameters
related to side speakers.
The selections for Rear speaker configuration are LARGE, SMALL and
NONE. Systems that utilize full-range rear speakers should select LARGE
to direct a full-range signal to them. SMALL should be selected when
filtering is desired. (80, 100 and 120Hz are available as settings for the -3dB
point).
Selecting NONE mutes the rear outputs and disables any effect parameters
related to rear speakers.
Use of the subwoofer output is specified here. Selecting YES, then pressing
SELECT allows you to display and adjust the crossover frequency for the
subwoofer output. The subwoofer output is created by summing the front,
left, center and right outputs, followed by a 24dB/octave lowpass filter. For
5.1 effects, the two surround channels and-the LFE channel are also
summed. Both the summing and filtering are performed in the digital
domain. You can select three different crossover points (Off, 80, 100 or
120Hz) for the subwoofer. Although you can also elect to bypass the
crossover and run a full range output if your subwoofer has an internal
crossover, it is generally best to use the crossover in the SDP-2.
NO mutes the subwoofer output and disables the Subwoofer Level param-
eter.
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