Classic API Bus Compression for Your 500 Series Rack
The API 529 borrows many of the features and controls from the company's acclaimed 2500 bus compressor (a Sweetwater favorite) and packs them into a double-wide 500 Series module. This stereo unit features API's patented Thrust circuitry for a punchy low end, along with a New/Old switch that lets you choose between vintage and modern compression characteristics. Old delivers classic feedback compression; New serves up today's more prevalent feed-forward compression. The Auto makeup-gain button lets you adjust ratio and threshold without affecting your output level. Employing both 2510 and 2520 discrete op-amps, the 529 delivers legendary API analog sonics. It's the sound that launched a thousand hits — made-to-measure for the popular 500 Series format.
Related Videos: 529 500 Series Stereo Compressor
This compressor's all about versatility and musicality
When you choose API, you know you're getting amazing sonic character. And with the API 529, you've got a wide range of characters to choose among and dial in. To start, the 529 has API's patented "Thrust" highpass filter before its RMS detector, which gives you frequency-dependent sidechain control for really punchy low end.
There are also two types of compression onboard the API 2500 — "old" and "new." The old style uses the feedback type of compression found on the classic early-'70s API 525, while the new style uses a feed-forward type similar to that of many popular modern compressors.
API: a tradition of high-quality audio
In 1968, Automated Processes Inc. began building quality consoles for broadcast applications. Soon, the company's products found favor with recording studios, and a string of industry-leading advancements (including computerized console automation, the first VCA, and more) followed. API produced the 2520 amplifier, one of the most famous op-amps in the recording industry, and their consoles and products found homes in such iconic studio facilities as The Hit Factory, Record Plant, Ocean Way, and Sunset Sound, among others. In fact, there are over 700 classic API consoles around the globe — many of which are still in use. And the company certainly isn't resting on its laurels; today's API products give you the same unbeatable combination of utility, innovation, and great sound.
API 529 Stereo Bus Compressor 500 Series Module Features:
- Audio circuit uses 2510 and 2520 Discrete Op Amps with transformer output
- Detented, continuously variable Threshold, Ratio, Gain, Attack, and Release controls
- 10-segment LED meters display Gain Reduction and selectable Input/Output Level
- Over Threshold indicator LED
- Patented Thrust switch for frequency-dependent side chain control
- 3 selectable compression curve Knee settings
- Selectable New/Old switch for modern feed-forward or vintage feed-back operation
- Selectable variable or auto compressor make-up gain
- In/Out with options for compression in/out or hard relay bypass
- Not standalone — requires compatible 500 Series chassis/power supply
