MSpectralPan

Pan Frequencies whereever you want them to be.

Yes, You can create a similar effect by using a L/R EQ and applying some filters but using MSpectralPAN, it is not only more accurate but also faster.

The visualizations of the Sonogram and Analyzer are also cool and helpful for adjusting the curves. Also got a Dry/Wet Mix control to make the effect more subtle.

Addional feature request: Would be great if one could adjust the pan law like in MUtility and M/S mode would be awesome.

But great plugin.