Add a channel to parametric equalizer Rod Elliott Project 150

[wonderfulaudio]

Add a band to parametric equalizer Rod Elliott Project 150

Rod Elliott's project 150 shows schematic for a single band parametric equaliser.
Parametric EQ

How does one add another band to it?

Thanks,
WA

 

[PRR]

.

 

[Mark Tillotson]

And you'll need a 2-gang pot for the cut/boost VR2, and a 4-gang pot for the frequency VR1.


Alternatively you could replace the piggy-backed 10k linear pot for the frequency with
a single 10k log per channel, thus only needing a dual log 10k pot for frequency for two channels.

 

[PRR]

> a 4-gang pot for the frequency

I would call that a single channel with double-strong action.

I thought he wanted a bass +and+ a treble.

I agree the question can be read several ways.

 

[wonderfulaudio]

I replaced the 'channel' with 'band' in the original question.

Thank you all for your responses

 

[dotneck335]

You could use this:
Eight Band Sub-Woofer Equaliser
and just adapt it for wider-band use.