Asus Crosshair V Formula/ThunderBolt - Manual (Page 170)

4-36 Chapter 4: Software support
Using.Sound.Blaster.X-Fi.MB.2
Speaker.and.Headphone
EAX
Equalizer
Mixer
THX
Adjusting Volume
Restoring.to.the.Default
Mute
Speaker and Headphone
You can adjust the
speaker-related or the
headphone-related configurations.
Environment audio extensions
(EAX)
After enabling the EAX effects,
you are allowed to select and add
your desired environment sounds
into the music.