Equalizer is a programming interface and resource management system for scalable graphics applications. An Equalizer application can run unmodified on any visualization system, from a singlepipe workstation to large scale graphics clusters and shared memory visualization systems.
Equalizer is build from ground up as a parallel, scalable programming interface solving the problems common to any multipipe application.
The Winamp equalizers presets are the best equalizer settings I have found. The following guide will get the default WinAmp presets working under Banshee 1.2.