[LAU] Detuned note stacking with LADSPA effect?

[Julien Claassen]

Hello everyone!
   Is there a ladspa effect, that simulates stacking of notes with a detune. 
Like the feature most modern virtual analogue synths have to produce things 
like supersaw. I don't need stereo spreading, for that I'd turn to a chorus.
   I've searched my local plugins for "detune", but only found choruses. Yes, I 
know, I could go overboard and use the rubberband or other pitchshifters and 
double/tripple... my track, but I'd rather not.
   Warm regards
         Julien

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