LaceSensor's new pedal Co. Gigahearts FX

J

jwin615

Well-known member
For any that have been around a while and on the madbean forum(you should all join, lots of good info there), you've probably interacted with @LaceSensor He's been around these parts a bit as well. Anywho.
He recently started up his own pedal brand, Gigahearts FX.

In these "modern" times, building a brand is a huge task. For anyone who generates ad revenue for Jeffrey Bezos, check out the Gigahearts BF giveaway. It's a modded(?) Aleph Null Clever Hans I believe.


Help one of our own persue the dream and give him a like or follow. Maybe even buy something?
 
Yo!

This is very kind of you to shout out!
I really appreciate it.

Yes, indeed, as per the post and the PCB silkscreen this is based on the Clever Hans. I spoke with Aleph Null and we are aligned and I have the blessing, and have credited this accordingly. I love his designs, he has some seriously cool stuff. As he doesnt make pedals for anyone other than himself I thought this was a cool way to share his stuff, and also someone will get a unique circuit to play (with my own take on the circuit).

And yep, its definitely hard to launch a pedal company. I appreciate the exposure and sharing, building awareness is one of the fundamental challenges I am facing, as despite making pedals for people for like 15 years under the Gigahearts name, it was always word of mouth rather than a concerted marketing effort :) (forums, live music scene, friends, connections, etc).

Cheers, and good lucjkt to anyone entering the competition. Its genuinely no strings attached.
There will be another one at 1000 followers, and anyone who buys a pedal from this "Launch" batch will be in the draw for another unique pedal.

Best,
Ian
 
Nothing too crazy. No secrets :)
As we discussed Im simply standing on the shoulder of giants, yourself included.

Biggest addition is the filter switch which gives three variations of the resonant LPF which I find offers a huge range of tones - even more so when combined with the right spot on the bass contour. A recent custom build I created for a client required researching various filters - good resource here: http://sim.okawa-denshi.jp/en/Fkeisan.htm

The multi-feedback topology which you found (with a calculator for here http://sim.okawa-denshi.jp/en/OPtazyuLowkeisan.htm) is really useful, and easy to adjust. I considered some options here but ended up tweaking values and ranges as I had done recently with the Micro Synth fuzz I was working on.

One thing that really affected this version was the choice of op amp to abuse. I think I mentioned over at Madbeans that I had been playing around with comparators for various applications, so figured it was worth trying some changes with your circuit. I found JFET input op amps were doing some things I specifically enjoy, and had a notable impact on the tone and behaviour (or mis-behaviour). Almost makes the contrast to the original circuit make it seem "polite" which is quite a thing to say when its definitely and extreme effect by nature.

I also tweaked numerous values to my taste across the board including the bass contour control to give a bit more bass
Lastly was switching out the simpler mosfet boost for a more complex one for arguably spurious reasons, but it seemed to work well with the aforementioned op amp change, and gives a bit more aggression / high treble I found. I can now get to the point where the gate can not longer hold stuff back and creates glitchy artefacts and sometimes self oscillation type stuff.

Final word here is another thankyou for your inspiration. I continue to follow your build reports with much wonder.
 
Cool! I might have to throw a TL072 in mine and see what it does! I experimented with a BJT boost upfront but didn't like how it glitched out. I prioritized a clean/accurate gating action. I can imagine the noise crowd would make good use of the self osculation.
 
LaceSensor said:
Nothing too crazy. No secrets :)
As we discussed Im simply standing on the shoulder of giants, yourself included.

Biggest addition is the filter switch which gives three variations of the resonant LPF which I find offers a huge range of tones - even more so when combined with the right spot on the bass contour. A recent custom build I created for a client required researching various filters - good resource here: http://sim.okawa-denshi.jp/en/Fkeisan.htm

The multi-feedback topology which you found (with a calculator for here http://sim.okawa-denshi.jp/en/OPtazyuLowkeisan.htm) is really useful, and easy to adjust. I considered some options here but ended up tweaking values and ranges as I had done recently with the Micro Synth fuzz I was working on.
Click to expand...
That's super interesting to me, as Sallen-Key resonant LPFs have been as big part of my open source DIY EQ pedal and onboard bass preamp builds for the last decade or so. Off to some Spice modeling I go! ;)

And best of luck with your new enterprise.
 
Passinwind said:
That's super interesting to me, as Sallen-Key resonant LPFs have been as big part of my open source DIY EQ pedal and onboard bass preamp builds for the last decade or so. Off to some Spice modeling I go! ;)

And best of luck with your new enterprise.
Click to expand...
Cheers! Have fun. There are a number of topologies there to play with :)
 
Aleph Null said:
Cool! I might have to throw a TL072 in mine and see what it does! I experimented with a BJT boost upfront but didn't like how it glitched out. I prioritized a clean/accurate gating action. I can imagine the noise crowd would make good use of the self osculation.
Click to expand...
The TL072 is pretty noisy not always a good way. I prefer (and finalised upon) the TL062
 
LaceSensor said:
The TL072 is pretty noisy not always a good way. I prefer (and finalised upon) the TL062
Click to expand...
Hmm...I have a couple of One Chip Ponies lying around (Clever Hans' little brother). Maybe I'll raid some builds for ICs and do a taste test. If it proves interesting, I'll throw up a video.
 
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LaceSensor said:
Cheers! Have fun. There are a number of topologies there to play with :)
Click to expand...
I spent a pleasant hour playing with the multi feedback LPF in LTspice. Wrong tool for my current projects, but definitely looks cool and useful for many other things. I love revisiting old cookbook circuits in any case!
 
I finally got a chance to test some different opamps.

4558: works as expected. Gate gets faster when working the guitar volume control, tone gets a little darker

2068: Less sustain. Much more sensitive to guitar volume control. A little spitty.

TL072: More sustain, more fizzy (less mids?). Guitar volume control acts as a tone control, but has no effect on the gating action.

TL062: Basically infinite sustain, no gating action. Responds more like a traditional fuzz or distortion. Guitar volume effects mostly tone and saturation. Cleans up like a Big Muff. My unit motor boats a little bit. Definitely the nosiest.
 
Aleph Null said:
I finally got a chance to test some different opamps.

4558: works as expected. Gate gets faster when working the guitar volume control, tone gets a little darker

2068: Less sustain. Much more sensitive to guitar volume control. A little spitty.

TL072: More sustain, more fizzy (less mids?). Guitar volume control acts as a tone control, but has no effect on the gating action.

TL062: Basically infinite sustain, no gating action. Responds more like a traditional fuzz or distortion. Guitar volume effects mostly tone and saturation. Cleans up like a Big Muff. My unit motor boats a little bit. Definitely the nosiest.
Click to expand...

Cool to compare notes !
Fun testing out different ones. I also tried out a couple others, will have to revisit.
 
LukeFRC said:
@LaceSensor - think you're in Manchester? you going to be at the Leeds pedal show?
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Howdy. I might attend as a punter, and there is an outside chance of me getting a booth based on a last minute drop out.
However, I was unlucky with the draft pick. I get on well with the curator however, so its all good.
Maybe see you there in some capacity!
 
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