[linux-audio-user] XMMS stereo plugin

On pre-existing mixes, I have tried various plugs available through XMMS. The LADSPA equalizers might be useful though their UI needs better, more logical design. Most of the others seem quite specialized, might be useful on synthesizer tracks. The one plugin that can sound quite nice is the included (non-LADSPA) stereo enhancer. I have found no DX or VST freebee that works as well or as imply. The "PSP stereo enhancer" is close but has more adjustments to mess up. Both increase the level so the trim needs be lowered. Has anyone come across other such plugins? Can (such as by using jack) XMMS be used to apply its plugin and the result be saved in another .wav file?