API 560 10-Band Graphic Equalizer – 500 Series

The API 560 is a reissue of the iconic 1969 graphic equalizer, one of the first of its kind and still a benchmark for musical EQ shaping today. Designed in the popular 500 Series “lunchbox” format, the API 560 delivers 10 bands of precision equalization with API’s legendary analog warmth, headroom, and reliability.

Each band provides ±12 dB of boost or cut on fixed, one-octave frequency centers, using a familiar slider-based graphic interface for fast and intuitive operation. At the core of the 560 is API’s renowned Proportional Q design, which automatically narrows the bandwidth of each band as boost or cut is increased — allowing for detailed, surgical adjustments or smooth, broad tonal shaping depending on your needs.

The API 560 also features center-detented sliders for easy recall and precise zeroing, enhanced resolution in the ±4 dB range for fine-tuned settings, and a silent bypass switch for quick A/B comparisons. Built with API’s signature discrete circuitry and 2520 op amps, the 560 offers unmatched headroom and clarity, making it an excellent choice for everything from vocals and instruments to mix bus and mastering duties.

Key Features:

10-band graphic equalizer in 500 Series format
Based on the original 1969 API 560 EQ
±12 dB boost/cut per band
Fixed one-octave frequency centers for quick and accurate EQ
Proportional Q narrows bandwidth at more extreme settings
Increased resolution in ±4 dB range for fine adjustments
Center-detented sliders for easy resetting
Silent bypass switch for clean A/B comparisons
Classic API discrete circuit design with 2520 op amps
Fits all standard 500 Series racks

The API 560 is a powerful, musical, and fast-to-use graphic equalizer — perfect for engineers who want the legendary analog tone and intuitive control that only API can deliver in a compact 500 Series module.