TX-SR393 - AccuEQ Room calibration

This receiver is outfitted with AccuEQ Room calibration system. 

It will allow you to place the supplied speaker setup microphone at the listening position. The unit
automatically measures the test tones output from each speaker, and sets the optimum volume level for each speaker, the crossover frequencies, and the distance from the listening position. This also automatically adjusts the equalizers for the speakers, and enables correction of sound distortion caused by the acoustic environment of the room.

•  It takes between 3 and 12 minutes for calibration to be completed. Each speaker outputs the test tone at high volume during measurement, so be careful of your surroundings. Also, keep the room as quiet as possible during measurement.
•  If you connect a subwoofer, check the power and volume of the subwoofer.  Set the subwoofer volume to more than half.
•  If the power of this unit suddenly turns off, the wires in the speaker cables have touched the rear panel or other wires, and the protection circuit is working. Twist the wires again securely, and make sure they do not stick out of the speaker terminals when connecting.

Calibration process- 

1. Place the supplied speaker setup microphone at the listening position, and
connect it to the SETUP MIC jack on the main unit.

When placing the speaker setup microphone on a tripod, refer to the
illustration.

2. Confirm a test tone is output from the subwoofer and press ENTER.

3. Press ENTER. Then, test tones are output from each speaker, and the
connected speakers and the noise in the surrounding environment are
automatically measured.

4. The measurement results in step 3 are displayed. Select "Next", and press
ENTER. The test tones are output again. Then, the unit automatically sets the
optimum volume level, crossover frequency, etc.

5. When the measurement is completed, the measurement results are displayed.
You can check each setting using the cursors / . Select "Save" and press
ENTER to save the settings.

6. Disconnect the speaker setup microphone.