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Guitar Tone Stacks
Guitar Tone Stacks
Hello everyone! Here are 4 tonestacks: Simple, Marshall, Vox TB (Tone Booster) and Vox as Marshall.
Simple is where I started to create tonestacks.
Marshall: let's face it, I don't know math delta transformations and I'm not a matlab user. That's why from the very beginning I decided to use Flowstone tools, although you can find C++ programs on the net. As a basis I took the TSC in the web calculator from https://www.guitarscience.net/tsc/marshall and started to adjust the coefficients with gradual approximation to the desired characteristic. You can judge how close the obtained characteristics are to those in TSC in the web.
Vox TB: the same was done with Vox Tone Booster.
When I was almost finished, it occurred to me that Vox TB is a variant of Marshall but without the Middle control and this control can be replaced by a numerical value. That's how Vox as Marshall came about. It is up to you to decide which one you prefer. If someone will improve this or present their own variants of TSC, I will be glad if you share it.
Simple is where I started to create tonestacks.
Marshall: let's face it, I don't know math delta transformations and I'm not a matlab user. That's why from the very beginning I decided to use Flowstone tools, although you can find C++ programs on the net. As a basis I took the TSC in the web calculator from https://www.guitarscience.net/tsc/marshall and started to adjust the coefficients with gradual approximation to the desired characteristic. You can judge how close the obtained characteristics are to those in TSC in the web.
Vox TB: the same was done with Vox Tone Booster.
When I was almost finished, it occurred to me that Vox TB is a variant of Marshall but without the Middle control and this control can be replaced by a numerical value. That's how Vox as Marshall came about. It is up to you to decide which one you prefer. If someone will improve this or present their own variants of TSC, I will be glad if you share it.
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martinvicanek
- Posts: 1334
- Joined: Sat Jun 22, 2013 8:28 pm
Re: Guitar Tone Stacks
Wow, that must have been qute some work, if based on trial and error! And you seem to have searched the entire forum for filters, congradualtions and respect! When I hear three-band tone control, I immediately think cascaded peaking EQs or shelving filters, but that's not how tone stacks in vintage guitar amps worked. In contrast, I think your filter topology captures the characteristics very well! Thumbs up!
Re: Guitar Tone Stacks
Thank you martinvicanek! I realized the importance of TS (Tone Stack) influence on the sound in my youth, when I was designing tube guitar amplifiers. In my opinion, the TS circuitry is up to 30-40% of the character of the sound of a particular amp. That's why I bow my head to Fender and Marshall, who designed TS in their amps, guided almost only by intuition. Still, I'm sure that the electrical circuitry of resistors and capacitors can be implemented via DSP code. I would be glad to do so, but to my deep regret I do not know the methods of converting electrical circuits into code due to the lack of necessary education, so I went by trial and error. And also, I really dug through the whole forum in search of the filters I need. That is why I can say in the words of one of the classics: "I stood on the shoulders of giants".