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Comp 609 (iOS)

Just purchased. Its excellent. I literally emailed the devs 2 weeks ago asking if they could do a compressor app. Never heard back and wow surprise. All RRS plugins are very good. Cheers Whitestormbeats (forum.audiobus.us)

American Equalizer model B v1.0.2

Based on Classic American EQ from the late ’60s, the Model B is a continuation of the EQ that played a major role in the history of music recording, but with an additional filter band and several new frequencies. With a surprisingly wide range of tonal variations, the Model B is an invaluable and professional audio tool with great flexibility and excellent sonic ability. 


  • Modeled vintage EQ.
  • 4 Bands of classic American equalization.
  • Each band offers 7 Selected Frequency Centers.
  • 12 dB of boost/cut per band.
  • EQ band 1 and 4 offer Shelf/Peak Switching.
  • Proportional Q narrows filter Q at extremes.
  • Stereo (Mono), Mid or Side EQ Modes.

Rather than offer a huge assortment of complex features, the Model B provides exactly the right number of controls. Its four EQ Bands are overlapped significantly to aid in dual roles as problem solver and sweetening device with each band offering seven switchable filter frequencies that span four-to-five octaves. These frequencies, purposely selected to be musical rather than numeric.

Making use of Proportional Q intuitively widens the filter bandwidth at minimal settings and narrows it at higher settings without the need for additional bandwidth controls. This unique feature minimizes the «phase-shift» sound found in many equalizers.

The Model B extends the features of the original hardware and joins the flexibility of the digital world to the character of the analog processing. Allows you to choose between equalizer Modes (Stereo, Mid, Side) and remove Analogue Saturation from the processing circuit to deliver pure digital sound.