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If you want a heavy distortion pedal that's useful on bass, you should check out the digitech hardwire sc-2 valve distortion pedal. this pedal has a transparent but heavy valve-like distortion sounds that sounds phenomenal on bass. I plan to get one myself sometime soon. here's the youtube clip that inspired me to buy this pedal.
You can't get what you are after from the barbershop in combination with the unpleasant surprise?I would super appreciate (as I hope others would too) first hand experience with any and all Heavy Bass Distortion (not fuzz or overdrive).
I'm looking for a 'boulders rolling around a giant's iron cauldron' kinda distortion. Ever felt/heard a 7.0+ earthquake in the middle of a large city? Yep, that's pretty close to the sound I'm looking to recreate.
Possible candidates are:
EBS Metal Drive - samples seem promising, but I'm not convinced yet.
I don't know; something with a low-mid center, uncompressed, no fizz, generates concern over speaker damage, tectonic shifts, rifts in spacetime, etc..
Suggestions?
I'm using a Warwick Thumb 5 string into a Mesa M9, if that helps. I'm also using the heaviest strings I could find, DR Drop Down Tuning set to BEADG.
Also, please see my profile for a ridiculously long list of effects I've already tried and traded. If you've copped this tone before with any combination of anything I've used before though, do let me know. It's entirely possible I've missed something...
Thanks everyone!
Here's my current board setup too:
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Thanks Cman, I'll look into those.
I'm about to wire up a GK Diesel Dawg (2001RB high gain channel based distortion).
It should be done tomorrow, then I'll see what the fuss is all about concerning this effect.
And yeah, it's going in a waaaaay smaller enclosure then the stock model.
Oh, the Euphoria drive sounds way more better on the treble guitar.
I think I'll leave it there for now.

GLOGG GLOGG KLANGG KLANGG RUMBLE RUMBLE (repeat all at once, like really loud).

Thanks Cman, I'll look into those.
I'm about to wire up a GK Diesel Dawg (2001RB high gain channel based distortion).
It should be done tomorrow, then I'll see what the fuss is all about concerning this effect.
And yeah, it's going in a waaaaay smaller enclosure then the stock model.
Oh, the Euphoria drive sounds way more better on the treble guitar.
I think I'll leave it there for now.
I haven't tried the SC-2 but I took it to the next level and got a Hardwire TL-2. Right now my favorite aggressive (heavy distortion bordering on fuzz) sound is the TL-2 ("loose" voicing, high gain, slight low boost, slight mid scoop) > B7K (low gain, medium blend, grunt on, low boost, mid-high boost, mid-low cut).
Here's the Euphoria I assembled.
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And today I completed a johnk modded Diesel Dawg.
Thanks again for the vero layout John!
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Of course they need some artwork.
Like I mentioned, the Euphoria doesn't work for my bass tastes, but I think the Diesel (henceforth to be referred by me as the 2001RB, or just 2001) is a keeper for while at least. I'm looking forward to stacking it, once I get some more boxes for building.
I think John's mod was to decrease the hiss (white noise) and increase the output volume. I've never tried the original, nor seen the original circuit so I couldn't tell you where on the board his mods go.
All I know is it's a solid layout, and sounds great! John is the bass drive master!