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API 550
release date: 25.11.2015

API 550

5.0 of 5
€ 249,-
$ 227.78
£ 222.41
Full Product
AAX native, AU, Mac, RTAS, VST, Win
ca. 95.37 MB
after successsful payment
€ 249,-$ 227.78£ 222.41
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A Pair of versatile EQs with a One of a Kind API Sound

Modeled on the late 1960s legend, the API 550A EQ provides reciprocal and repeatable equalization at 15 points in 5 steps of boost, divided into three overlapping ranges. Its high and low frequency ranges are individually selectable as either peaking or shelving, and a band-pass filter can be inserted independently of all other settings.

The 550B, with its renowned four overlapped EQ bands, is invaluable as both a problem solver and a sweetening device. With 7 switchable filter frequencies spanning up to 5 octaves per band, the 550Bs “Proportional Q” automatically widens the filter bandwidth at minimal settings and narrows it at higher settings. It even lets you undo previous processing, affect or even reverse tonal modifications.

With their vast range of tonal possibilities, the API 550A and 550B are a pair of versatile EQs with that one-of-a-kind API sound.


  • Modeled vintage EQ plugins
  • Developed in association with API
  • API 550A: 5 selected frequency centers per band
  • API 550A: Maximum 12 dB of boost/cut per band in 2-3 dB steps
  • API 550A: “Proportional Q” narrows filter Q at extremes High headroom +30 dB clip level
  • API 550B: 7 selected frequency centers
  • API 550B: 12 dB of boost/cut per band
  • API 550B: Bands 1 and 4 offer shelf/peak switching
  • API 550B: High headroom +30 dB clip level


product ratings Ratings

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The following reviews have been placed by customers who also bought this product from us. All reviews are provided through eKomi, Europes largest independent customer review company.

Language: englisch
5.0 of 5

Good Sounds!!

Sprache: deutsch
5.0 of 5

Adds definition and clarity to anything you add it to!

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requirements Requirements

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  • Windows 7 / Windows 8
  • Intel Core 2 Duo 2GHz /AMD Athlon 64 or equivalent
  • 4GB Ram
  • Host Programm required: VST, RTAS, AAX native, 32-bit and 64-bit, or SoundGrid System
  • Please check for details and latest information HERE !!!


  • OSX 10.7 or later
  • Core Duo 2.3Ghz
  • 4GB Ram
  • Host Programm required: Audiosuite, VST, RTAS, AAX native, 32-bit and 64-bit, or SoundGrid System
  • Please check for details and latest information HERE !!!

Demo version
7 days demo licenses are available HERE (registration and activation required!)

Bundle content
All Plug-Ins, Collections and Bundles include the identical content as described on As the content might be extended by the supplier from time to time, our descriptions might not be up to date in rare cases.

online activationProduct activation:
An internet connection on any computer is required to authorize / activate the product (Challenge/Response).





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