ONKYO 9555 Manuel D’Utilisation

16

Enjoying Audio Sources—Continued

While the MAIN IN function is on, the A-9755’s tone 
controls have no effect. 

The [PURE DIRECT] button turns the 
PURE DIRECT function on and off.
When the PURE DIRECT function is 
off, the tone controls can be used to 
adjust the sound, and the PURE DIRECT indicator goes 
off.
When the PURE DIRECT function is on, the tone con-
trols are bypassed, so you can enjoy a pure sound. The 
PURE DIRECT indicator lights up.

The BASS control adjusts bass 
sounds. Turn it up to make them 
louder. Turn it down to make them 
quieter. Normally, it should be set 
midway.

The TREBLE control adjusts treble 
sounds. Turn it up to make them 
louder. Turn it down to make them 
quieter. Normally, it should be set 
midway.

By pressing the [LOUDNESS] button, 
both treble and bass are reinforced 
when the volume is turned down low. 
Use this button according to the music 
source and according to the listening area. Its purpose is 
to enrich the natural sound effects of both the treble and 
bass.
The indicator lights up when the LOUDNESS function 
is on.
• When using the A-9755 as a power amplifier (MAIN 

IN function), the Loudness control doesn’t work.

• When the PURE DIRECT function is on, the Loud-

ness control is disabled.