Winamp Alternative on Ubuntu Audacious

$sudo apt-get install audacious

If doesn't work, add repository and try again
$sudo add-apt-repository ppa:nilarimogard/webupd8
$sudo apt-get update
$sudo apt-get install audacious


Note:Enable Winamp mode and enalbe equalizer


Resources
[1] http://audacious-media-player.org/download
[2] Equializer from Winamp
     http://ubuntuforums.org/showthread.php?t=1609390
[2] How to install
     http://www.webupd8.org/2014/04/install-audacious-35-in-ubuntu-1404-or.html