Apogee FX Rack Opto-3A, Compressor Plugin (Download), Exact emulation of the known optical compressor / limiter, Switchable emphasis on the HF range, Sidechain with high pass filter and parallel compression, Native DAW operation without Apogee hardware and on the Apogee hardware DSPs of the Element / Ensemble audio interfaces, Officially supported DAWs: Logic Pro X, Pro Tools 12, Ableton Live 10, Cubase 9.5