Sony A846 - Manual (Page 52)

ModelName: Falcon_E
PartNumber: 4-164-613-11
  Playing Music
Table of
Cont
ents
Home Menu
Inde
x
Customizing sound quality
You can preset the value of CLEAR BASS (bass) and 5 band Equalizer as
[Custom 1] or [Custom 2].

From the Home menu, select [Settings]

[Music Settings]

[Equalizer]

[Custom 1] or [Custom 2].

Press the / button to select CLEAR BASS or the frequency range
setting, and press the / button to adjust the setting level, and
then press the  button to confirm.
The [Music Settings] screen reappears.

CLEAR BASS can be set to any of 4 sound levels, and the 5 frequency
ranges can be set to any of 7 sound levels.
 After you have adjusted the setting level, be sure to press the  button
to confirm. If you press the BACK/HOME button before you confirm,
the setting will be canceled.
Note
 The [Equalizer] setting is not applied while playing a video, FM radio, a video podcast,
or external input audio.