The official Sony Ericsson Blog brought us news that there is finally a way to enable a equalizer on the Sony Ericsson Vivaz and the Satio.
For most markets there is now an free application called “Equalizer” available on PlayNow in the music category under applications. This equalizer will give you the following different options: Off, Classical, Jazz, Dance, Party, Pop, Rock, Spoken Word, Loudness, Mega Bass and Treble Boost.
There are two important notes though: First of all this application needs the latest update to work on Satio and also since it’s a separate application it needs to be started separately when you want to start using it i.e. it’s not included under options in e.g. the music player. When an equalizer setting has been chosen it should stay even if the application is closed or the phone rebooted.
Unfortunately, this application is not deeply integrated into the music player but a standalone application.