If you simply need a brickwall limiter then try to engage only the peak limiter section and the output section with intersample peak control enabled. It may take some time and experimenting to fully understand the way it works and the many possibilities it offers. 6 has an output section where you can set your ceiling and chose between intersample peak limiting or digital clipping. Section three is a high frequency limiter and section four is a clipper that can work either in multiband, mid / side or normal mode. On top of this the peak limiter can work in different speeds and you can chose from several types of peak limiting.
Section two is a peak limiter and again you have the choice between several modes: multiband, mid / side, soft, or brickwall limiting. The first section is a RMS compressor that gives you the choice of working in stereo or mid / side mode. 6 has five sections that can be switched in or out as you wish to suit your needs in the situation at hand. I have tested it up against several other limiters – free and commercial – and it delivers very convincing and satisfying results.
6 is a free VST mastering grade limiter of very high quality created by Vladg.
