It would be great if you add an equalizer for multiband compressor.
Here's why:
1) When I tried to bypass the compression of the bass frequencies, it usually ends up with other frequencies being too quiet or bass frequenceies being too loud. (I bypassed the bass compression by setting up up attack to full and down speed to zero, and soft limit to zero) Equalizer could help to fix this problem. (Putting just soft limit to zero with other settings being normal still does deeply affect the bass.)
2) You can customize more with the sounds compression. (You can now use different down speed, up attack, and soft limit settings for each band more freely due to equalizer's being used to balanced out amplication for each band from these settings.
3) Winamp's Equalizer does not match with your multiband frequencies.