Yamaha AX-497 用户手册

■ Adjusting the BALANCE control

Adjusts the sound output balance of the left and right 
speakers to compensate for sound imbalance caused by 
speaker locations or listening room conditions.

■ Using the CD/DVD DIRECT AMP switch

Routes input signals from your CD or DVD player 
directly to the specially built-in amplifier for the CD or 
DVD player. As a result, the input signals bypass the 
INPUT selector and the BASS, TREBLE, BALANCE and 
LOUDNESS controls (and the TAPE MONITOR switch 
for AX-397 only) and then sent to the power amplifier, 
thus eliminating any alterations to the CD or DVD signals 
and creating the purest possible sound.

■ Using the PURE DIRECT switch

Routes input signals from your audio sources. As a result, 
the input signals bypass the BASS, TREBLE, BALANCE 
and LOUDNESS controls, thus eliminating any alterations 
to the audio signals and creating the purest possible sound.

As for AX-497 only, if both the CD/DVD DIRECT AMP and the 
PURE DIRECT switches are turned on, only the CD/DVD 
DIRECT AMP switch will function.

■ Adjusting the BASS and TREBLE 

Adjusts the high and low frequency response.

BASS
Increases or decreases the low frequency response.

TREBLE
Increases or decreases the high frequency response.

■ Adjusting the LOUDNESS control

Retains a full tonal range at any volume level, thus 
compensating for the human ears’ loss of sensitivity to 
high and low-frequency ranges at low volume.

If the CD/DVD DIRECT AMP switch (or the PURE 
DIRECT switch for AX-497 only) is turned on with the 
LOUDNESS control set at a certain level, the input signals 
bypass the LOUDNESS control, resulting in a sudden 
increase in the sound output level. To prevent your ears or 
the speakers from being undesirably damaged, be sure to 
press the CD/DVD DIRECT AMP switch (or the PURE 
DIRECT switch for AX-497 only) AFTER lowering the 
sound output level or AFTER checking that the 
LOUDNESS control is properly set.

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