Anything like the Zähl-EQ1 in DIY?
« on: November 20, 2019, 04:15:00 PM »
hey fellas,

is there anything like the Zähl EQ1 in DIY?
Probably feature-wise nothing will come even close, its absolute killer.
But maybe sonically? A stereo, 4-band, punchy but transparent EQ.


Re: Anything like the Zähl-EQ1 in DIY?
« Reply #1 on: November 24, 2019, 03:04:27 PM »
I bet nobody except Zähl has seen the schematics of this EQ. So why bother with that. It´s a fully parametric EQ. If you want one then buy it. If you want to DIY then go with what is available and possible. Many of the unusual features can be incorporated into available designs if you´re determined enough.

IMHO the best DIY EQ available is our member Sahib´s EQ1. The original design behind it is the  Amek M2500/3000/3500 EQ. The same extended featureset of the Zähl EQ has been part of the Amek original design in some of it´s revisions. That means it´s at least possible to get you close to your goal.
Another good DIY EQ is the Barry Porter Net-EQ. It has rather narrow Q, though, but it is easy to modify it for +5/+15 gain.
Quote from: PRR
The tubes of course don't care what frequency they distort


Re: Anything like the Zähl-EQ1 in DIY?
« Reply #2 on: December 01, 2019, 11:45:10 AM »
I agree with Jens,the TAC EQ ONE is killer!

Best regards,



Re: Anything like the Zähl-EQ1 in DIY?
« Reply #3 on: December 14, 2019, 01:22:56 PM »
Thanks guys.. I wasn't looking for an Zähl EQ-1 clone.. of course nobody has the sophisticated schcematics for it.
I was looking for an alternative and the suggested TAC EQ ONE seems the one.
That was the tip needed :) I wasn't aware of this EQ.. so thank you!


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