Selecting The Speaker System - Yamaha AX-390 Owner's Manual

Selecting the SPEAKER system

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.
Adjusting the BALANCE control
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.
Adjusting the BASS and TREBLE
controls
BASS
0
l l
2 2
3 3
4 4
5 5
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.
10
SPEAKERS
A B
ON ON
OFF OFF
BALANCE
0
l l
2 2
3 3
4 4
L 5 5 R
TREBLE
0
l l
2 2
3 3
4 4
5 5
Using the CD DIRECT AMP switch
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.
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.
1
LOUDNESS
FLAT
l
30 dB
2 l0
3 9
4 8
5 7
6
VOLUME
l6
2
l8 l4
20 l2
24 l0
28
8
34
40
50
2
60
70 l
0
–dB
3
LOUDNESS
FLAT
l
30 dB
2 l0
3 9
4 8
5 7
6
CD DIRECT
AMP
Set to the "FLAT"
position.
6
Set to the loudest
4
listening level that you
3
would listen to.
Turn until the desired
volume is gained.