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SETUP
SDP-5
3-39
CALIBRATING OUTPUT LEVELS
Selecting the SPEAKER SETUP menu LEVELS CALIBRATION option
opens the LEVELS CALIBRATION menu shown above, which can be
used to calibrate output levels for the Main Zone audio output
connectors. Calibration ensures that output levels correspond to
THX reference levels (75dB) for input sources such as DVDs.
Please note the following to ensure accurate output level
calibration:
• It is recommended to use a Sound Pressure Level (SPL) meter
to calibrate output levels. An SPL meter is a device that
measures the relative loudness of the speakers to ensure
accurate output level calibration. SPL meters are available at
Radio Shack (catalog number 33-2050).
• Before output level calibration begins, eliminate extraneous
noises in the listening space, such as conversations, air
conditioners, and sounds that filter in through open doors and
windows.
LEVELS CALIBRATION
SPEAKERS
SETUP
• Before output level calibration begins, remove objects
(as well as people) that obstruct the line-of-sight path between
the SPL meter and the speaker being measured.
• Output levels should be calibrated from the primary listening
position, placing the SPL meter at the approximate spot where
the listener’s head will be during listening.
INTERNAL NOISE TEST
Opens the INTERNAL NOISE message shown above, which
indicates that the internal noise test produces loud calibration
test signals. When this message appears, press the Menu arrow
to open the SPEAKER LEVEL ADJUST menu shown above and con-
duct the internal noise test or press the Menu arrow to close the
message without conducting the internal noise test. When the
SPEAKER LEVEL ADJUST menu opens, the internal noise test
automatically begins.
. . . Internal Noise Test continues on page 3-40
INTERNAL NOISE TEST
LEVELS CALIBRATION
SPEAKERS
SETUP
MAIN MENU
MODE ADJUST
AUDIO CONTROLS
SETUP
SETUP
SETUP
INPUTS
SPEAKERS
REAR PANEL CONFIG
DISPLAYS
VOLUME CONTROLS
TRIGGER
LOCK OPTIONS
SPEAKERS
SPEAKER SETUP
CUSTOM SETUP
SYNTHESIS 7CH SETUP
SPEAKER DISTANCES
LEVELS CALIBRATION
80Hz 80Hz
80Hz 80Hz 80Hz
80Hz 80Hz
80Hz
L
M
SUB
R
C
SL
SR
RL
RR
LEVELS CALIBRATION
LEVELS CALIBRATION
INTERNAL NOISE TEST
DACS CALIBRATION
BASS PEAK LIMITER
INTERNAL NOISE TEST
SPEAKER LEVEL ADJUST
FRONT LEFT +0.0dB
CENTER +0.0dB
FRONT RIGHT +0.0dB
SIDE RIGHT +0.0dB
REAR RIGHT +0.0dB
REAR LEFT +0.0dB
SIDE LEFT +0.0dB
SUBWOOFER +0.0dB
INTERNAL NOISE
!CAUTION!
HIGH AUDIO LEVELS