5. SPEAKER LVL CALIBRATION
a.
TEST SEQUENCE :
Off
b.
NOISE REF LEVEL :
- 9.0 dB
c.
LEFT FRONT :
+0.0 dB
d.
CENTER :
+0.0 dB
e.
RIGHT FRONT :
+0.0 dB
f.
RIGHT SURROUND :
+0.0 dB
g.
LEFT SURROUND :
+0.0 dB
h.
SUBWOOFER :
+0.0 dB
41
7.
ADVANCED SET-UP
continued …
Note:
The FRONTS, CENTER, SURROUNDS, SUB, and BALANCE buttons on the Remote Control and Fro n t
Panel DO NOT affect settings in this menu, but rather allow adjustment of program material as may
be re q u i red (section 5.6).
Note:
The Speaker Configuration (section 7.4.3) must be done before the Speaker Level Calibration
since any speaker set to ‘None’ will be skipped.
As a convenience, when you are in the Setup Menu both MAIN Volume and Mute still operate. Be
s u re that MAIN is unmuted, otherwise you will not hear sound in the Speaker Level Calibration.
(menu 5.a) Test Sequence:
Lets you select whether the test noise will travel automatically from speaker to speaker (in 2 second
intervals), or choose each speaker manually, or Off.
(menu 5.b) Noise Reference Level:
Sets the master level of the Dolby shaped noise signal. The default –9.0dB generates the Dolby
recommended output voltage at the analog outputs.
Subwoofer Calibration:
The subwoofer noise bandwidth is specially designed to give you a meaningful comparison of subwoofer
bass level to the levels of other speakers. When adjusting, increase Subwoofer Level until you can hear it
and then lower it slightly until it “blends” with the other speakers. We also recommend playing music
containing a lot of bass to help you find the most natural overall tonal balance between the subwoofer and
the rest the speakers.
If you choose a Speaker Configuration that also directs bass to the L/RFRONTS, the Speaker Level
Calibration will provide the subwoofer test noise, simultaneously, to both Subwoofer and L/R Fronts to
let you set the bass balance between Subwoofer and L/R Fronts. With the level control on your
subwoofer set to ‘0’, adjust the subwoofer test noise so that it is just audible in the L/R Fronts. Then
increase your subwoofer’s level control to achieve a suitable bass balance.
Note:
Since this setup calibrates all speaker levels for your listening area, use the Remote Control and
sit in the primary listening chair when performing this test.
This calibration may be done by ear or by using a Sound Pressure Level (SPL) meter. When using
an SPL meter, temporarily set the Subwoofer to ‘Yes’ in the Speaker Configuration menu (L/R
Surrounds and Center will have to be set to ‘Large’ or ‘None’) so that the test noise comes from
the Subwoofer only.
The test noise is pre-shaped to mimic the average music spectrum. The optimal SPL meter setting
is ‘flat’, but ‘B-’ or ‘C-weighting’ may also be used.
Even if using an SPL meter always check by ear, and when in doubt trust your ears to set final levels.
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