No, not more plug-ins. This is a short interactive web tour so that people can sample some basic settings on a couple of classic compressors.
The first one is an SSL G series bus compressor, which is arguably “the” classic stereo bus compressor. I made a kit version of one of these and they do sound great. You can hear the punchiness in this virtual compressor tour:
http://www.rspeaudio.com/v/sslcompressor.html
The other is a Distressor EL8-X, which is a very versatile compressor:
http://www.rspeaudio.com//v/distressor.html