Universal Audio API 2500 Bus Compressor Plug-In

Glue together your stereo mixes and submixes with the API 2500 Bus Compressor Plug-In from Universal Audio. Designed by legendary circuit-designer Paul Wolff, the original API analog compressor has proven to be a studio go-to compressor as it offers a unique tonality that adds energy and movement to mixes, due in large part to the unit's unique Thurst and Link controls. Painstakingly detailed modeling of API's custom transformers and 2510 and 2520 op-amps further ensure this digital emulation accurately recreates the analog goodness of the original. This plug-in software download includes a native version that will run on Mac and Windows computers without UA hardware as well as a second version that runs accelerated on Apollo interfaces and UAD-2 hardware.

The Only End-to-End API 2500 Emulation

Poring over proprietary for-your-eyes-only schematics made available to Universal Audio by API, the company's team of DSP experts analyzed two classic API 2500s—rackmount and in-console—ensuring one of UA's tightest behavioral circuit models to date. Working together with API's engineers, UA scrutinized every facet of the plug-in against its analog counterpart, delivering the definitive representation of this iconic compressor. Early beta testing with UA artists confirmed that the plug-in ranks among the most accurate analog emulations in UA history.

Built for the 2-Bus

API designed the 2500 compressor with program material firmly in mind. Its Release control includes fixed or variable options, while the Attack, Threshold, and Ratio controls offer musical tweaking throughout their range, making the API 2500 a toneful dynamics overlord for your stereo bus.

Shaping Tone and Dynamics

The API 2500 allows selection between three custom-voiced compression knees—Soft, Medium, and Hard. You can shape the tone further with two compression types; Old—for characterful peak-detection harkening back to API's earliest highly coveted 525, or New—which features a modern feed-forward design.

Thrust Control for Unmatched Punch

Taken from their Paragon series of consoles, the API 2500's Thrust feature puts a filter before the RMS detector, evening high and low frequency energy—so neither triggers the compressor more than the other. This gives you a tight hallmark API punch beyond any other compressor.

Enhance Energy and Motion

Most compressors only allow you to turn left/right linking on or off. The API 2500 Bus Compressor Link parameters allow for precision control of your mix's L/R dynamic interaction. Set exactly how much dependence—or independence—you want your L/R spatial dynamics field to have, and hone your dynamic contours even further with the Shape control.