Sometimes little changes have big results

I've been thinking about this quite a bit lately, with my relatively limited understanding. There are plenty of things in the audio world I don't understand - how can I hear bass in a song through a 2" speaker? How can a 2" speaker reproduce bass frequencies?

I think it has to do with the whole circuit, not just that little bit. I played the pedal again today for quite some time with my Duo Jet. It sounds glorious and I love it - the sound is closer to "that sound in my head" than I've ever achieved before. No, my testing is not rigorous and scientific! But I do still have an example of the pedal which is identical except for that one resistor. I managed to set up some blind testing and there is definitely a difference. It's not huge but it's definitely there! I can get them to sound remarkably close of course, and can improve the bass string sound by turning down the bass on the older pedal and slightly increasing treble. But there is still a slight furriness with the original circuit which isn't there in the new one.

I find discussing this stuff online a bit frustrating. I wish we could just get together and try it. I could be convinced I was wrong if someone could show me. I'm happy to be proven wrong - it happens all the time! But as it stands I'm just delighted that I can fiddle about with electronics and get such great sounds.
 
HamishR said:
I've been thinking about this quite a bit lately, with my relatively limited understanding. There are plenty of things in the audio world I don't understand - how can I hear bass in a song through a 2" speaker? How can a 2" speaker reproduce bass frequencies?

I think it has to do with the whole circuit, not just that little bit. I played the pedal again today for quite some time with my Duo Jet. It sounds glorious and I love it - the sound is closer to "that sound in my head" than I've ever achieved before. No, my testing is not rigorous and scientific! But I do still have an example of the pedal which is identical except for that one resistor. I managed to set up some blind testing and there is definitely a difference. It's not huge but it's definitely there! I can get them to sound remarkably close of course, and can improve the bass string sound by turning down the bass on the older pedal and slightly increasing treble. But there is still a slight furriness with the original circuit which isn't there in the new one.

I find discussing this stuff online a bit frustrating. I wish we could just get together and try it. I could be convinced I was wrong if someone could show me. I'm happy to be proven wrong - it happens all the time! But as it stands I'm just delighted that I can fiddle about with electronics and get such great sounds.
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Love your dedication and passion, thanks a lot for that!
Yeah my rational mind has doubts about the sonic difference with the resistor change but who cares! I love those conversations, and that you're so passionate about creating the sound in your head.

(With that said, I would love to hear the difference on the same pedal but with that resistor on a switch :D)
 
Extrapolating on the idea that cutting sub-audible frequencies improves tone, you could build an adjustable HPF pedal. I’m thinking: buffer -> RC HPF -> buffer to completely avoid any interaction with circuitry before and after. The C in the filter could be on a rotary switch to select the cutoff frequency. Then you could apply the same concept to experiment with any guitar / pedal / amp situation.

Again I’ve not seen this have an effect personally. And it would definitely depend on guitar / other pedals / amp if it’s audible at all, since all these may handle the bass differently.
 
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