RainbowPlayer it's a freeware player for Windows.

Main features:

• Supported formats: mp3,ogg,wav,aiff,mod,s3m,xm,it,stm,dmf,amf,med,mtm,669,far,ams,
dsm,nst,ult,wow,mdl,okt,ptm,psm,mt2,zip(modules)
• Skins
• Digital Sound Processing(DSP) filters & effects
• Not used DirectX, but very fast
• You can convert all supported formats to wav
• Font language generation(any language!)
• Beautiful graphic interface
• Simple and suitable functions
• Hot keys with redefinition and sound notifications
• Auto Resume
• Auto Minimize
• "Repeat 1" function
• Playlist (and 9 playlists on hot keys)
• All basic sort functions
• dsp plug-ins in archive : dsp_lib1, equalizer