BPB Dirty LA

BPB Dirty LA is BPB’s own freeware compressor, designed to be easy to use and to sound musical without much fuss. It’s inspired by the LA-2A limiting amplifier, but with a few additions that the original hardware never had. The Peak Reduction knob does most of the work. You can simply set the amount of compression you want, and the algorithm handles attack, release, and ratio automatically. The Mix knob blends the compressed signal with the dry source for fast parallel compression.

We also included a Limiter mode switch that swaps the gentle leveling behavior for a faster response, which is useful on the master bus or drum bus when you need tighter peak control. The Dirt algorithm simulates the analog saturation of vintage limiting amplifiers. When engaged, the plugin internally switches to 4x oversampling to keep things clean. You can use it sparingly on drums for body, or push it on synths and vocals for character.

With Dirt off, the plugin runs at the standard sample rate to save CPU.