JBL SYNTHESIS SDP-40 User Manual page 62

SETUP
Setting Crossover Points
MAIN MENU
MODE ADJUST
AUDIO CONTROLS
SETUP SETUP
Custom Speaker Setups
SETUP SPEAKERS SET CROSSOVERS
Selecting the CROSSOVER SETUP menu CUSTOM SETUP option
opens the CUSTOM SETUP menu shown above, which can be used
to assign independent crossover points for each Main Zone audio
output connector. Crossover points can be selected in 10Hz
increments within a 30 to 120Hz range. With the exception of THX
80Hz, all crossover points activate a 24dB-per-octave filter. The
graphs shown on the next page indicate the frequency response of
each crossover point.
To configure a custom speaker setup:
• Select the crossover point closest to the low-frequency rating
of the associated speakers. For instance, set to FRONT L/R
parameter to the crossover point closest to the low-frequency
rating of the front speakers.
3-22
(continued from page 3-21)
SETUP
INPUTS
SPEAKERS
SPEAKERS
REAR PANEL CONFIG
DISPLAYS
VOLUME CONTROLS
TRIGGERS
LOCK OPTIONS
CUSTOM SETUP
SPEAKER SETUP CUSTOM SETUP
CUSTOM SETUP CUSTOM SETUP FRONT L/R
SYNTHESIS 7CH SETUP CENTER
SPEAKER DISTANCES SIDE L/R
LEVELS CALIBRATION REAR L/R
SUB L/R
R SR RR
SUB XOVER
80Hz 80Hz 80Hz
LFE
ULTRA2 SUB
C
BGC
80Hz
ASA
M
L SL RL
SUB
80Hz 80Hz 80Hz 80Hz
• Select the subwoofer crossover point equal to the lowest
crossover point of the other speakers. For instance, if CUSTOM
SETUP menu parameters are set as shown above, set the SUB
XOVER parameter to 40Hz – the lowest crossover point of the
other speakers.
In general, low frequencies will be redirected from the speakers
with the highest crossover points to the speakers with the lowest
crossover points. Low-frequency signals lower than the lowest
crossover point will be redirected to the subwoofer. If the lowest
crossover point is FULL, low-frequency signals, excluding LFE
information, will not be redirected to the subwoofer.
40Hz
60Hz
60Hz
60Hz
MONO
40Hz
OFF
OFF
N/A
APART
JBL