Imagine a fancy graphics equalizer with 28 sections, lowest (bass) sections on the left and highest (treble) sections on the right.

 

As you probably know, each section has a sliding control (fader). Sliding the fader to the top will increase (boost) the volume of that section. Sliding to the bottom will decrease (cut) the volume.

So boosting the left sections will accentuate the Bass part of the sound. Boosting the right will accentuate the treble. Simple.

 

Now we need some numbers. On the Y-axis we need +12 at the top, -12 at the bottom and 0 in the middle, this is the Gain (note: This type of Gain refers to volume, not distortion). On the X-axis we need to show the frequency of the sections, ranging from 40Htz (bass) to 18000Htz (treble) this is sometimes called the “spectrum”. – (It’s interesting to note that the human ear can only hear approximately between 20htz and 20000htz anything above or below this spectrum is inaudible)

 

 Now we can see what frequency we are affecting and by how much.

You may notice that these numbers correspond to the controls in the MRS8’s Channel EQ’s (this is why we had 28 sections)

The EQ in the MRS8 does NOT work the same as a graphics equalizer – It’s just helpful to have a graphic representation of what is going on.  If you boost one of the middle frequencies (say: 400) in a graphics equalizer, only that frequency is affected. With the MRS8 EQ you only have 2 Bands (high & low) with 2 controls for each (frequency & gain). If you boost the same frequency (400) using the low band all frequencies below & including that frequency will be boosted. If you boost a frequency with the high band all frequencies above & including that frequency will be boosted. This is a semi-parametric shelf equalizer.

 

 To achieve the above with the MRS8’s EQ controls you need the following settings:

 

 

To achieve the above with the MRS8’s EQ controls you the following settings: 

 

This may seem restrictive but allows ease of use, as we need only worry about 2 bands rather than 28 faders! Each Band does not give full control over the whole spectrum of frequencies, but they do overlap, giving control over the mid range frequencies.

 

The low shelf ranges from 40 to 1600. The High shelf ranges from 500 to 18000. Giving dual control of range 500 to 1600. Using these two bands combined with the channel’s gain (overall volume), we can affect any part of the spectrum.

 To boost the mid range we can simply cut the high and low ranges then boost the overall gain.

Firstly, cut the required hi and lo frequencies,

 

 Then boost the channel gain (use the Track Parameter’s fader option for precise adjustments) by 8.