First Time Setup—Continued

6 Use the Up and Down []/[ ] buttons to select “d. Surround,” and then use the Left and Right []/[ ] buttons to select a crossover frequency.

If no surround left and right speakers are connected, select None.

Note:

If the Front setting in step 4 is set to anything other than Full Band, Full Band cannot be selected here.

Continue with step 7 in the right col- umn.

Low-Pass Filter for the LFE Channel

With this setting, you can specify the cutoff frequency of the LFE channel’s low-pass filter (LPF), which can be used to filter out unwanted hum. The LPF only applies to sources that use the LFE channel.

7 Use the Up and Down []/[ ] buttons to select “e. LPFofLFE,” and then use the Left and Right []/[ ] buttons to select a low- pass filter frequency.

The following low-pass filter frequen- cies can be selected: 80 Hz, 100 Hz, 120 Hz (default), 150 Hz, or 200 Hz. Continue with step 10 below.

Double Bass

With the Double Bass function, you can boost bass out- put by feeding bass sounds from the front left and right channels to the subwoofer. This function can be set only if the Subwoofer setting in step 3 is set to Yes, and the Front setting in step 4 is set to Full Band.

In the speaker setup screen, you can choose how bass information is distributed to your speakers only if you have large front left and right speakers AND a subwoofer.

8 Use the Up and Down []/[ ] buttons to select “f. Double Bass,” and then use the Left and Right []/[ ] buttons to select:

On: Double Bass function on (default). Front left and right bass also goes to the sub- woofer simultaneously.

Off: Double Bass function off.

9

Press the [SETUP] button.

 

 

The setup menu closes.

 

SETUP

Note:

This procedure can also be performed on the AV receiver by using its [SETUP] button, arrow buttons, and [ENTER] button.

Testing the Speakers

To test that all of the speakers are working properly,

press the remote controller’s [TEST TONE] but- ton.

 

 

LISTENING MODE

 

 

STEREO

SURROUND

 

 

TEST TONE

AUDIO

SUBTITLE RANDOM

REPEAT

TEST TONE

CH SEL

LEVEL-

LEVEL+

 

 

PLAY MODE

 

 

 

DISPLAY

AUDYSSEY

L NIGHT

CINE FLTR

 

 

VCR

DVD

HDD

 

 

RC-668M

 

The test tone will be output by each speaker in turn and the name of each speaker will appear on the dis- play. To turn off the test tone, press the [TEST TONE] button again.

If the test tone is not produced by a speaker, or it’s produced by a speaker other than that shown on the display, you may have wired the speakers incorrectly and you should check your connec- tions (see page 20).

If the test tone is not produced by a speaker and its name does not appear on the display, you may have set the speaker configuration incorrectly (see page 42).

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Onkyo HT-R640 instruction manual Low-Pass Filter for the LFE Channel, Double Bass, Testing the Speakers