[sdiy] Graphic EQs? (was Output circuit)

[harry]

Almost always*... the highest and lowest bands are shelving EQ... the
lowest
band is a HPF and the highest is a LPF so... yes they attenuate all
frequencies
beyond the bands.

*meaning: I have never seen one that was NOT like this...

H^) harry

Chromatest Pantsmaker wrote:

> Edu Silva wrote:
>
> > Use an EQ to narrow the freq response from 40Hz to 15kHz.
>
> I've seen several different graphic EQ's, but never really needed to
> use one, so never really gave them much thought.
>
> My one question at this point is as follows;  what happens to the
> audio that is above and below the highest and lowest (respectively)
> bands of the EQ?  Are the 'end-point' bands set to attenuate all
> frequencies beyond them, or do the ultra, and sub sonic frequencies go
> through untouched?
>
> thanks all.
>
> -ben

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