Attenuating the Input Signal

When the input level of the playing source is too high, the sounds will be distorted. If this happens, you need to attenuate the input signal level to prevent the sound distortion.

On the front panel ONLY:

INPUT ATT.

Press INPUT ATT. so that the lamp next to the button lights up.

The ATT indicator also lights up on the display.

Each time you press the button, the Input Attenuator mode turns on (“INPUT ATT ON”) or off (“INPUT NORMAL”).

Note:

When selecting “DVD MULTI” as the source, this effect only applies to

front left and right channel signals.

Adjusting the Front Speaker Output

Balance

If the sounds you hear from the front right and left speakers are unequal, you can adjust the speaker output balance.

Before you start, remember....

There is a time limit in doing the following steps. If the setting is canceled before you finish, start from step 1 again.

On the front panel ONLY:

ADJUST

1. Press ADJUST so that the cursor control %/ Þbuttons work for adjusting the sound.

2. Press cursor control % / Þ repeatedly until “L/R BALANCE” appears on the display.

3. Press cursor control @/ #to adjust the balance.

Pressing @decreases the right channel output (from “L-21” to “R-21”).

Pressing #decreases the left channel

output (from “R-21” to “L-21”).

Reinforcing the Bass

With this Bass Boost function, you can boost the bass level.

Before you start, remember....

There is a time limit in doing the following steps. If the setting is canceled before you finish, start from step 1 again.

On the front panel ONLY:

1. Press ADJUST so that the cursor

ADJUST

control % / Þbuttons work for

 

adjusting the sound.

 

2. Press cursor control %/ Þ repeatedly until “BASSBOOST” (with the current setting) appears on the display.

3. Press cursor control @/ #to switch this function “ON” or “OFF.”

• When this function is switched “ON,” the

BASS BOOST lamp on the front panel lights up.

Note:

The Bass Boost function affects the front speaker sounds only.

Adjusting the Tone

You can adjust the treble and bass sounds as you like.

Before you start, remember....

There is a time limit in doing the following steps. If the setting is canceled before you finish, start from step 1 again.

On the front panel ONLY:

1. Press ADJUST so that the cursor

ADJUST

 

control % / Þbuttons work for

 

adjusting the sound.

 

2.Press cursor control %/ Þ repeatedly until “BASS” or “TREBLE” appears on the display.

Select “BASS” to adjust the bass sound level.

Select “TREBLE” to adjust the treble sound level.

3.Press cursor control @/ #to adjust the bass or treble sound

level within the range of –10 to +10.

Each time you press the button, the sound level changes by ± 2 steps.

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JVC RX-668RBK manual Attenuating the Input Signal, Adjusting the Front Speaker Output Balance, Reinforcing the Bass

RX-668RBK specifications

The JVC RX-668RBK is a commendable addition to the world of home audio receivers, delivering a blend of impressive features and robust sound performance ideal for both casual listeners and audiophiles alike. This 5.1-channel AV receiver stands as a testament to JVC's commitment to quality and innovation in home entertainment systems.

One of the standout features of the RX-668RBK is its power output. Capable of delivering up to 100 watts per channel, the receiver ensures that users can enjoy clear, dynamic sound at any volume level. The receiver supports a range of audio formats, including Dolby Digital and DTS, which provide an immersive experience during movie nights or while enjoying music. This multi-channel setup allows for true surround sound, transporting listeners straight into the action.

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