Yamaha AX-390 Owner's Manual download pdf (Page 10)

Because one or two speaker systems can be connected to this

unit, the SPEAKERS switches allow you to select speaker

system A or B, or both at once.

Adjust the balance of the output volume to the left and right

speakers to compensate for sound imbalance caused by

speaker location or listening room conditions.

BASS : Turn this clockwise to increase (or counter-

clockwise to decrease) the low frequency

response.

TREBLE : Turn this clockwise to increase (or counter-

clockwise to decrease) the high frequency

response.

Selecting the SPEAKER system

Adjusting the BASS and TREBLE

controls

Adjusting the BALANCE control

SPEAKERS

OFF

BALANCE

TREBLE

BASS

Adjusting the continuously variable

LOUDNESS control

This control provides compensation for the human ears’ loss of

sensitivity to high and low-frequency ranges at low volume.

This control is adjustable to retain full tonal range at any

volume level.

Set to the “FLAT”

position.

Set to the loudest

listening level that you

would listen to.

Turn until the desired

volume is gained.

LOUDNESS

FLAT

30 dB

LOUDNESS

FLAT

30 dB

VOLUME

–dB

You can enjoy the purest possible CD sound from your CD

player by pressing this switch inward. By doing so, CD’s input

signals are sent to the built-in amplifier special for CD directly

bypassing the input selector buttons, the BASS, TREBLE,

BALANCE and LOUDNESS controls, and then sent to the

power amplifier. This signal routing reproduces the purest CD

sound eliminating any alterations to the CD signals.

Using the CD DIRECT AMP switch

CD DIRECT

AMP

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Yamaha AX-390 Owner's Manual Page 10

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