Ah I didn't see that you can configure it.
From 10 bands to 31 bands.
15 is too cpu intensive (with my configuration).

But 10 bands (like original xmms eq) is fine.

So we now have a working Equalizer for mp3, ogg, flac,..

Thanks to PinCushionQueen for reporting and solving the issue


You can fetch it with the above link or wait that I make a .deb.

ps:
Does anybody have performance issue when reading from sd card? (I have no sd card at the moment, no way to check).
From flash, the ogg and equalizer performance is perfect but I'm not sure anymore from sd card..