KVR: IQ4gui by platinumears - Details
This is by far the best multiband com I've ever tried. It's fully parametric and can be used as an upward/downward compressor/expander. The only thing to keep in mind is that you need to create multiple versions with different names ( iq4, iq4-1, iq4-2 ect.) because it was designed from a platform that won't support multicore machines. That said , this workaround let's me use it without any problems in Cubase 6. Best of all, it's FREE!