An Overview of the Waves API 560 EQ Plugin


Hello. My name is Eric Tarr.

In this video, I’ll provide an overview to the Waves API 560 equalizer plug-in.

First, I’ll demonstrate the spectral processing characteristics, and then let you hear it in action. This plug-in is modeled after the API 560 hardware equalizer. It is a 10-band graphic EQ, which means there are ten separate peaking or bell shaped filters with fixed frequency, but variable amplitude.

The frequencies of the 560 are spaced out in octave increments, which means from one band to the next, the frequency is either doubled or halved.

Let me demonstrate the plug-in now by making use of the Waves Q-Clone to visualize the spectral curve.

Here, you can see as I increase the amplitude of the 1kHz band, the bell shaped curve shows up in Q-clone.

This is also true for any of the other bands as well.

One interesting thing to know about the API 560 is that each bell shaped curve has proportional Q or bandwidth. This means that the bandwidth is wide when there’s a small change in amplitude, and the bandwidth is narrow when there’s a large change in amplitude.

Here, you can see that when I change the amplitude by a small amount, the 3dB down point is wider than when I change the amplitude by a large amount.

Here, the 3dB down point is much narrower. This allows for a wide range of flexibility with the plug-in, as the 560 is capable of various smooth shaping, as well as very dramatic equalization.

The interaction between adjacent bands also opens up a wide range of creative possibilities.

Let me demonstrate how the plug-in sounds using a lead vocal.


Here, I’ll make use of some of the included presets with the plug-in.


Notice that the plug-in adds a fullness to the low end and a clarity to the upper mids without ever sounding harsh.

The last controls to show you on the plug-in are the output gain control, the polarity invert switch, and the ability to turn on and off the analog modeling.

I’ll play it out now and let you hear the plug-in work its magic.


Eric Tarr

Eric Tarr

Eric Tarr is a musician, audio engineer, and producer based in Columbus, Ohio. Currently a Professor of Audio Engineering Technology at Belmont University in Nashville, TN.
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