This thing sounds great and can be transparent or colored. Has a nice high pass in the detector circuit (with different slopes and a percentage control which seems to be a blend, so turning it below 100% starts to make the fitler more like a low shelf than an HPF), dedicated dry blend control and incredibly detailed threshold and time constant control over both the main compressor and RMS section allowing precise shaping of the volume envelope. At home on an insert or a bus, this compressor is clean and versatile. When you really need to control things in detail this is one handy device. It is hard to believe its free.