Sure. I know it's quite obvious but... Kjaerhus Classic Limiter is well known freeware brick wall limiter unit designed to boost the overall level of your final mixes. There's only one knob available - Threshold. All you need to do is to put it on the Master bus, set the threshold level down and your mixes will get louder.
What does 'brick wall' limiter mean ?
Brick wall limiting has a very high ratio and a very fast attack time. Ideally, this ensures that an audio signal never exceeds the amplitude of the threshold. Ratios of 20:1 all the way up to ∞:1 are considered to be 'brick wall'. The sonic results of more than momentary and infrequent hard/brick-wall limiting are harsh and unpleasant, thus it is more common as a safety device in live sound and broadcast applications.Is it better than Barricade ? Both are very close. It sounds different and somehow I like Barricade a little bit more. Quite often I don't need a threshold (maximizer) because my Master Bus volume is already above 0 db - Barricade just handles all the limiting stuff pleasantly.
Download: Kjaerhus Audio Classic Limiter [Link Dead]