Pioneer SC-07 manual Troubleshooting

Troubleshooting (Continued)

EQ response in the graph (following calibration) does not appear flat

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 18 to 20.)

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.

Adjustments made with the “Manual MCACC” setup do not change the graph

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.

Lower frequencies do not seem to have been calibrated for SMALL speakers

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”.

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