Adding to my problematic collection of Muff's. Tempted by my love of EF/DAM products. This one is unique. Mid pushed on one side of the switch and super scooped on the other. Doomy and clanging scooped. Lotsa midrange control in the tone stack. Sounds great. Thanks for the layout!!!!!!!!!
Nope, as usual, spoke too soon. Misplaced a cap value. No more mid focus. Wooly and doomy. Sounds great though. Excellent Big Muff. Thanks again. End transmission
I'm keen to build this one out - 560pf caps will trim more bass frequencies vs typical 470 pf resulting in slightly more mids forward voice. 4n7 vs typical 3n9 in the tone stack + reducing 39k to 33k will enhance that effect even more. Looks very cool.
Would it be possible to mod this layout so that it has a 3 position toggle for the tone shift (scooped, flat, and mid-boosted) instead of the scooped/flat option? I was trying to figure out how to take the tone shift caps to a DPDT 3 pos switch but I'm not 100% confident in the routing. Thanks!
The way it's currently set up, one leg of the 4.7nf cap in the upper right hand corner is always connected to the other 4.7nf cap below it. Throwing the switch connects the other legs together to add them in parallel for 9.4nf. To move this function to a switch I recommend a dpdt on/off/on. Remove the 4.7nf cap in the upper right hand corner. Change the value of the 4.7nf below to 2.2nf. Connect wire from b19 to lug 2 of your switch. Connect lug 5 of your switch to tone 3, add a 2.2nf cap between lugs 1+4, and a experiment with cap value for cap between lugs 3+6 - try 6.8nf to 10nf.
Adding to my problematic collection of Muff's. Tempted by my love of EF/DAM products. This one is unique. Mid pushed on one side of the switch and super scooped on the other. Doomy and clanging scooped. Lotsa midrange control in the tone stack. Sounds great. Thanks for the layout!!!!!!!!!
ReplyDeleteSorry not mids. The tone control really works. From murky to very bright for a BM.
DeleteNope, as usual, spoke too soon. Misplaced a cap value. No more mid focus. Wooly and doomy. Sounds great though. Excellent Big Muff. Thanks again. End transmission
ReplyDeleteJust made this...it sounds much less dark and sludgy than I anticipated. A really sweet big muff. 😊
ReplyDeleteYeah, this one stays on my board. I can't explain what makes it sound so interesting. It's just a cool Muff. It's heavy and gloomy and articulate too.
DeleteI'm keen to build this one out - 560pf caps will trim more bass frequencies vs typical 470 pf resulting in slightly more mids forward voice. 4n7 vs typical 3n9 in the tone stack + reducing 39k to 33k will enhance that effect even more. Looks very cool.
DeleteWould it be possible to mod this layout so that it has a 3 position toggle for the tone shift (scooped, flat, and mid-boosted) instead of the scooped/flat option? I was trying to figure out how to take the tone shift caps to a DPDT 3 pos switch but I'm not 100% confident in the routing. Thanks!
ReplyDeleteThe way it's currently set up, one leg of the 4.7nf cap in the upper right hand corner is always connected to the other 4.7nf cap below it. Throwing the switch connects the other legs together to add them in parallel for 9.4nf. To move this function to a switch I recommend a dpdt on/off/on. Remove the 4.7nf cap in the upper right hand corner. Change the value of the 4.7nf below to 2.2nf. Connect wire from b19 to lug 2 of your switch. Connect lug 5 of your switch to tone 3, add a 2.2nf cap between lugs 1+4, and a experiment with cap value for cap between lugs 3+6 - try 6.8nf to 10nf.
DeleteI'll give that a try - thanks!
DeleteUploaded a verified MOJO layout...
ReplyDelete