I have a couple of ideas to somewhat model the Clean > Vintage dirt on the 2 note.
1. UA > Finally
2. UA > Neptunium
Am i on the right track? or should i be considering maybe the other distortion pedals in the lineup (JC emerald) etc.
Appreciate any input!
My .02: (I currently have DC, UA, Elementary, Single Slice, Glass Butterfly and have had JCE and Detective in the past, as well as More. I have never heard or played Neptunium, Grand Slampegg or Venus X/Z).
Although there's plenty of overlap between the various Sushi preamps that can run clean through dirty, there are also some significant differences to consider. In terms of tone, the passive eq's are very different. UA and the Dreamcatcher use the Fender stack, JCE the Marshall, Elementary and Detective the HiWatt. Before deciding it's well worth using the online simulator to familiarize yourself with these.
IME the JCE provides the least bass even with the bass boost engaged) and is the most predisposed to a scooped sound (I sold mine). The Detective's 2 channels and Elementary yield the sharpest/ best/grindiest upper mid & high end to my ear. The Fender stack (UA & Dreamcatcher) is the one that can be set closest to flat if desired.
Also-only the UA has the tone stack bypass toggle that effectively acts as a boost (because the eq in the circuit decreases output). None of these has the passive HPF. DC and Detective are large (5.7" wide), JCE is 4.7" wide. The 2 channel offerings need at least 500 mA to run and are cheaper than buying 2 single cannel boxes BUT having 2 single channel boxes side by side saves 1/2" of real estate and allows 3 tone flavours because they can be run in series whereas the 2 channel boxes permit running 1 channel at a time.
I hope that helps.
P.S. Canadian exchange rates and taxes make these boxes even more expensive than they are in Europe........and if that was the biggest problem around here these days the world would be a better place.