The API 2500 Stereo Bus Compressor allows adjustment of sonic qualities to alter the punch and tone of the stereo mix.
One of the 2500's notable qualities is its use of API's patented THRUST circuit for a chest-hitting, punchy bottom end. The 19-inch, rack-mountable unit boasts a dual-channel design that can be configured for stereo compression or for use as two separate units via a single compression setting.
Another unique feature of the 2500 is its selectable "old" or "new" compression. The old style uses the "feed back" type of compression found in the API 525, while the new style uses a "feed forward" type in which the compressor side chain is fed directly from the unit input. Additionally, the output stage exhibits an auto-makeup gain button that permits the user to vary the threshold or ratio while automatically maintaining a constant output level. Further, the 2500 ensures fidelity with its all-discrete, fully balanced design with two front panel VU meters showing input, output and gain reduction levels.
API 2520 Op AmpVariable threshold between -20dBu and +10dBuSelectable ratio, attack and release timesPatented THRUST® selectable high-pass filter before RMS detectorVariable link between left and right channelsOld "feed back" or new "feed forward" compressionSoft, medium or hard knee for easy to sharp compressionAuto or manual gain make up1/4" balanced side chain inputsOutput clips at +28dBu
Power Consumption, Quiescent: 22.8 Watts
Size: 19" X 1.75" (1U) X 10.5" Deep
Size (Boxed for Shipping): 23.25" X 6.5" X 16"
Actual Weight: 9.48 lbs
Shipping Weight: 13.38 lbs
Woodstock New Brunswick
March 3, 2018
When I starting look at this unit I wanted something like a brick wall limiter. This has not let me down. I like the options on it for new and old type compression dual mono or stereo. It has auto or manual gain, nice feature if you are not sure if what you set it to will work so putting it at auto the machine shows you.. Read more
The 2500 is such a stellar performer in my studio am not sure how I would work at times with out it. Build quality, well the name says it all API......