Pioneer VSX-92TXH User Manual

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Troubleshooting (Continued)
Cause 1: 
The slope of the graph indicates the reverb characteristics. The reverb 
characteristics of the room itself cannot be corrected by equalization alone, so 
the angle of the graphs’ slope is the same before and after calibration.
Through calibration, the graphs for the different frequencies move horizontally by the amount of the 
equalization. For the results of calibration, you can check that the graphs line up at a specific point on 
the time axis.
The reverb characteristics themselves (the shape of the graph) do not change unless the listening 
environment is improved.
(See pages 
.)
Cause 2: 
For various reasons, the frequency characteristic graphs may not become flat 
even when equalization is performed with the “SYMMETRY” or “ALL CH 
ADJUST” functions.
With MCACC, calibration is performed automatically to achieve the optimum sound quality, but without 
any unreasonable calibration.
Cause: 
Despite level adjustments being made, the filters used for analysis may not 
display these adjustments in the graphical output. 
However, these adjustments are taken this into account by the filters dedicated to overall system 
calibration.
Cause 1: 
Low frequency calibration with the equalizer is not performed for speakers that 
are set to “SMALL”, but the reverb characteristics display shows the pure 
characteristics of the sound output from the speakers, so it indicates the 
characteristics with no low frequency calibration.
With MCACC, optimum calibration is performed in function of the speakers’ sound reproduction 
capacities, so there is no problem for low frequency calibration of speakers that are set to “SMALL”.
EQ response in the graph (following calibration) does not appear flat
Adjustments made with the “Manual MCACC” setup do not change the graph
Lower frequencies do not seem to have been calibrated for SMALL speakers