FourT6and2
Newbie
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I've been doing this mod to Marshalls lately. It's five tube gain stages with a single gain control, master volume, and typically a depth control, variable NFB, and slope switch. I've done it to various hand-wired Super Leads, Super Trems, JCM800s, 2203/2204, JMP, kits and clones, and DIY builds. They all come out with a similar vibe, but retain the original sound and feel of the donor amp. For the most part, no additional holes drilled to maintain the un-modded look. I've been tweaking the design a bit here and there, but started developing my take on this type of circuit a little more than a year ago.
It's got a cool sound and it's super fun to play. You can dig into chords due to all the saturation and compression that comes with five gain stages. But because of the filtering design I use and how I tune the voltages, the low-end stays fairly tight and snappy.
If you're into anything from '80s metal to '90s thrash to modern rock/metal—even prog rock—you would probably appreciate this circuit. It's a very "no frills" design. I don't like, nor need a thousand switches or channels. I prefer a set it and forget it approach.
Takes boosts quite well too, which was surprising to discover. I have a Fortin 33, Grind, and Airis Mid Screamer and this circuit responds very well to all of them. Just need to change the EQ settings a bit to compensate because these boosts tend to suck all the low end out and push the mids a ton.
Anyway, talk is cheap. So here's some build photos of various iterations and some iPhone clips (sorry, no pro recordings... YET).
It's got a cool sound and it's super fun to play. You can dig into chords due to all the saturation and compression that comes with five gain stages. But because of the filtering design I use and how I tune the voltages, the low-end stays fairly tight and snappy.
If you're into anything from '80s metal to '90s thrash to modern rock/metal—even prog rock—you would probably appreciate this circuit. It's a very "no frills" design. I don't like, nor need a thousand switches or channels. I prefer a set it and forget it approach.
Takes boosts quite well too, which was surprising to discover. I have a Fortin 33, Grind, and Airis Mid Screamer and this circuit responds very well to all of them. Just need to change the EQ settings a bit to compensate because these boosts tend to suck all the low end out and push the mids a ton.
Anyway, talk is cheap. So here's some build photos of various iterations and some iPhone clips (sorry, no pro recordings... YET).
