Where this is easy and cheap to do, and where there is room on the chassis to do it, you will see a variety of secondary controls that determine how the primary ones work. In some instances, it is possible to alter where the boost and cut is applied by simply changing a few component values. So, they can provide boost as well as cut. Other equalizer circuits have the ability to not just passively bleed off content, but to apply gain selectively to different ranges of the spectrum. All they can do is arrange to bleed off different ranges to ground, or preserve whatever bass, mid or treble content is already there. So, for instance, Fender and Marshall amps have a 'tonestack' that includes a treble, midrange, and bass control, but none of those controls actually do any boosting at all. Some, by virtue of their design, only do the one. So, I'm replying here, and hope the person who sent the note gets to read this.Īll 'equalizers' have the potential to either boost or cut or do both, depending on their design.
I'm writing this because someone sent me a note, which I looked at, but then it seemed to disappear before I could reply.
