I WISH. People are gonna say GK Diesel Dawg, but it's a high-gain fuzz-like circuit and got nothing to do with the power amp-derived tone you're describing. If you find anything, let me know!
Yeah, did the search thing. It's the only thing that came up. Its perfect apart from being really big, ugly and doesn't fit the bill tonally
The closest I've gotten to a GK grind with a pedal is the Ashdown NM2 -channel 2. Sometimes I cant use my own gear so I have been looking for a pedal solution getting that sound from pedals.
I have a G-K 400RB-IV. It overdrives really easily with my plain ol' MIM P. I don't think there's anything really distinctive about the overdrive. It's not fizzy, but not really tubey. Sounds like an MXR or other generic distortion pedal. Though, I do like it. It has a good grain.
Some people attach the MB200 to a pedal board with good success. That way you are assured to get the GK tone
I was looking through a few GK amp discussions and the general consensus is the rb's do it better than the mb's. I've never AB'd them so I wouldn't know. I have played a few GK micros when I was in the market a year or 2 ago. I went with the Aggies TH500. Early this year I was Jamming with a couple of guys who had their own space with an old GK RB??? Something. It was smallish so prob a 400. It cranked with my stingray through it. To clarify, I am looking for something with a form factor similar to a VT or SFT. If it doesn't exist so be it, it's definitely a smaller niche of the market than the SVT sound in small box
The power supply in the RB heads is what is actually "hitting the rails" when you dime the master and push it to/slightly past it's limits. The power supply in the MB heads isn't the same so it's literally not possible to do it. The Boost channel on the MB500/800 does a decent job at emulating it.
Exactly. So why spend all those dollars and that much real estate on a decent job of emulating it when I don't require the attached power section strapped to my pedalboard. GK have gone to the trouble of emulating it themselves. If someone (possibly them but probably a boutique) could tweak it out and stick it in a neat little pedal that would be very helpful. Preferably before Christmas please.
The 'Boost' thing isn't the same as the 'Rails' thing at all. Only RB heads do the 'Rails' thing. And it's only really possible with the smaller ones(400, 800, 700RB).
I'm working on building the 800RB preamp into a pedal the size of a SansAmp. I've designed a circuit board small enough to fit, but it'll be a while before I have the funds to prototype it.
I am not sure what "hitting the rails" is, but I agree that the Zoom B3 does a good job of emulating the Gallien Krueger sound (at least in my opinion).