Level Settings - Klipsch THX ULTRA2 User Manual

LEVEL SETTINGS

The most accurate method for setting the relative levels of the speakers is to
use the Stage One's calibration signal in conjunction with a sound-pressure
level (SPL) meter. The Level Settings menu will begin with the test signal set
at a predetermined output level. THX suggests that the output of each chan-
nel be set to 75dB, read from the SPL meter at the listening position. (The
meter should be set to slow response and C-weighting, with the microphone
at seated ear height and pointed toward the ceiling. A camera tripod can be
helpful for this purpose.) If you do not use an SPL meter, set the levels by ear
so that the calibration signal sounds equally loud through all the speakers
except the subwoofer. Because our ears are much less sensitive at low fre-
quencies than at middle ones, setting the subwoofer to an audibly equal level
on the test signal will make it too loud on program material. If you must set
levels by ear, adjust the subwoofer level for a natural tonal balance on familiar
music recordings that contain substantial bass. The test signal will either
rotate from speaker to speaker at two-second intervals or stay locked to the
selected speaker, depending on the setting of the Scroll Test Tones menu in
the Advanced Menus. (See "Advanced Menus.") The test signal and level-set-
ting options will be available only for speakers selected as present in the
Speaker Configuration menu.
Press the OK button on the remote control or the front-panel Stage Manager
to enter the Level Settings menu.
Front Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the front left speaker to 75dB on the SPL
meter. Press the Up button on the remote or the front-panel Stage Manager to
proceed to center channel level setting.
Center
Press the Left and Right buttons on the remote or turn the Stage Manager
knob to adjust the level of the center speaker (if present) to 75dB. Press the
Up button on the remote or the front-panel Stage Manager to proceed to front
right channel level setting.
Front Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the front right speaker to 75dB. Press the
Up button on the remote or the front-panel Stage Manager to proceed to sur-
round right channel level setting.
Surround Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround right speaker (if present) to
75dB. Press the Up button on the remote or the Stage Manager to proceed to
surround back right channel level setting.
Surround Back Right
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround back right speaker (if pres-
ent) to 75dB. Press the Up button on the remote or the Stage Manager to pro-
ceed to surround back left channel level setting.
Surround Back Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround back left speaker (if present)
to 75dB. Press the Up button on the remote or the Stage Manager to proceed
to surround left channel level setting.
Surround Left
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the surround left speaker (if present) to
75dB. Press the Up button on the remote or the Stage Manager to proceed to
subwoofer level setting.
Subwoofer
Press the Left and Right buttons on the remote or turn the front-panel Stage
Manager knob to adjust the level of the subwoofer (if present) to 75dB. Press
the OK button on the remote or the Enter button on the front panel to exit the
Level Setting menu and proceed to the Speaker Distances menu.
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