Complexx is a compressor, limiter, and expander in a single plugin, built around a vintage dynamics sound that engineers have chased for decades. Use it to tighten a source, glue a bus, or bring a flat mix back to life. It has the character you want from old-school dynamics and the control you only get in software. The compressor does soft-knee bus glue that binds tracks together while keeping transients crisp. Push the mix knob at the top and you have parallel compression without a second instance. The expander is the secret weapon: pair it with the compressor and you can crush a drum bus hard while the expander cleans up the tails and rounds off the edges, so the whole thing stays focused instead of turning to mush. It shines on the mix bus, but it is just as happy shaping individual drums, gluing a drum bus, or adding density to bass and vocals. Thirteen controls per channel, stereo linking, width, THD options, and sidechain filters give you the range to dial in almost anything. Try it free for 14 days and put it on your toughest source.