Perfect, thank you!

You got it right, it is showing a separate LC filter for each Q.

With +- 10db how different is the cut Q? Is it a major difference (Like going from super sharp to super broad, or vise versa?) or just changing a little sharper or broader?

I also have a few questions on the LC and Shelf formulas.

The xls math file you posted for 6db filter calculation - is it possible to use that to calculate for 10db filter as well, or is there a formula change needed? ( I noticed the EQ Impedance is different than the "Characteristic Impedance")

Example: for a 32k pot (*which I assume is the resistor ladder*) and a Q of 0.6 - MIN/MAX is 6400/8000 - and a frequency of 1k

L=0.511

To use the formula (L = (Q*Rch)/(2*PI*f)) Rch is 5344 to get that same L value.

Does this mean that changing from 6db to 10db, but changing nothing else - there is a change in the impedance of the circuit?

I also didn't see C or R calculations in your paper so I'm unsure how those are calculated except by looking at the excel formula but I don't know how that relates to pot value and/or impedance or if they change with 6db vs 10db resistor ladder

I'm still learning!

**edit as I did a lot more of the math:**

So looking through all the calculations I was able to derive the following:

C = Capacitance in picofarads

L = Inductance in Henries

R = Resistance in Ohms

Rch = Characteristic Impedance in Ohms

f = Frequency in Hz

PotK = Pot in KOhms

Characteristic Impedance:

Rch = 167*PotK

Most of the rest derive from this, so I assume this is the main formula that would change?

Bell Filter:

L = (Q*Rch)/(2*PI*f)

C=1000000000/(39.478*L*f*f) *(where did 39.478 come from?)*

R=1000*PotK/50

High Shelf :

C =1000000000 / (2*PI*Rch*f)

Low Shelf:

L= Rch/(2*PI*f)

Based on the above (hopefully I'm accurate), which would change for switching from 6db to 10db - I assume the calc for Rch would change then everything else should fall into place except maybe C in the bell filter as I don't know where 39.478 came from? Would R calc in the bell filter change?