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• Reverb Measurement – Use this to measure the 

reverb characteristics before and after calibration. 

• Reverb View – You can check the reverb 

measurements made for specified frequency ranges 

in each channel.

1

• Advanced EQ Setup – Use this to select the time 

period that will be used for frequency adjustment and 
calibration, based on the reverb measurement of 
your listening area. Note that customizing system 
calibration using this setup will alter the settings you 
made in Automatically conducting optimum sound 
tuning (Auto MCACC) on page 37 or Automatic 
MCACC (Expert) on page 73 and is not necessary if 
you’re satisfied with these settings.

ON or OFF, and then START.
The following options determine how the reverb 
characteristics of your listening area are displayed in 
Reverb View:

• EQ OFF – You will see the reverb characteristics of 

your listening area without the equalization 
performed by this receiver (before calibration). 

• EQ ON – You will see the reverb characteristics of 

your listening area with the equalization performed 
by this receiver (after calibration).

2

 Note that the EQ 

response may not appear entirely flat due to 
adjustments necessary for your listening area.

3

When the reverb measurement is finished, you can select 
Reverb View to see the results on-screen. See 
Professional Calibration EQ graphical output on page 93 
for troubleshooting information.

reverb characteristics for each channel. Press RETURN 
when you’re done.
The reverb characteristics are displayed when the Full 
Auto MCACC or Reverb Measurement measurements 
are conducted.

4

Use 

/ to select the channel, frequency and 

calibration setting you want to check. Use 

/ to go 

back and forth between the three. The reverb 
characteristics graph before and after EQ calibration can 
be displayed by selecting Calibration : Before / After. 
Note that the markers on the vertical axis indicate 
decibels in 2 dB steps.

Based on the reverb measurement above, you can 
choose the time period that will be used for the final 
frequency adjustment and calibration. Even though you 
can make this setting without reverb measurement, it is 
best to use the measurement results as a reference for 
your time setting. For an optimal system calibration 
based on the direct sound coming from the speakers, we 
recommend using the 30-50ms setting.

Use 

/ to select the setting. Use / to switch 

between them.

Select the setting from the following time periods (in 
milliseconds): 0-20ms, 10-30ms, 20-40ms, 30-50ms, 40-
60ms, 50-70ms and 60-80ms. This setting will be applied 
to all channels during calibration.

When you’re finished, select START. It will take about 2 
to 4 minutes for the calibration to finish.

After the Acoustic Calibration Equalization is set, you are 
given the option to check the settings on-screen.

1 If  the  Reverb View procedure is performed after the Automatically conducting optimum sound tuning (Auto MCACC) on page 37 or Reverb 

Measurement operation, depending on the standing wave control setting, differences may appear on the reverb graph. With the Auto MCACC 
function, the reverberations are measured with the standing waves controlled, so the reverb characteristics graph shows the characteristics 
with the effect of the standing waves eliminated. By contrast, the Reverb Measurement function measures the reverberations without 
controlling the standing waves, so the graph indicates the reverb characteristics including the effect of the standing waves. If you wish to 
check the reverb characteristics of the room itself (with the standing waves as such), we recommend using the Reverb Measurement 
function.

2 • The calibration corresponding to the currently selected MCACC preset will be used when EQ ON is selected. To use another MCACC preset, 

press MCACC to select the MCACC memory you want to store.
• The predicted reverb characteristics after calibration can be acquired with the Full Auto MCACC function (Automatically conducting 
optimum sound tuning (Auto MCACC) on page 37), but here the actually measured reverb characteristics after calibration can be acquired.

3 After auto calibration with EQ Type : SYMMETRY (Full Auto MCACC, etc.), the graph for the inferred reverb characteristics can be displayed 

by selecting Reverb View. To display the actually measured reverb characteristics after EQ calibration, measure with EQ ON.

4 The After display when measurements have been made using the Full Auto MCACC or Auto MCACC (ALL or KEEP SP system) function 

shows the graph for the inferred reverb characteristics after EQ Type : SYMMETRY calibration.

5 To  specify the place where the MCACC memory is to be stored, press MCACC to select the MCACC memory you want to store.

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