I'm finding several "guitar" cabinets that I find better than the "bass" cabs that came with the Opus.
Maybe it has more to do with the state of the flatwound strings I have on my bass right now - 6 month old Ernie Ball Cobalt Flats on a Cort B5 Element with Bartolini Soapbars and a Markbass onboard preamp (though, I'm only running the bass in passive mode w/o a passive tone control).
I worked with the Marco 2x10 for a while, but so far the guitar cabs I like are the "Free Rock2" (2x12), the "AE ElDorado 212 X12", the "Friedman 412 Vint", the "AE LumberLever50 412", the "Tanger 30C" (4x12 for a more driven tone), the "Romanum2" (2x12), the "AE Petaluma 412 Vint", the "Blonde 63" (2x12), the "AE CaliB 212 P12N", the "Angl Pro30" (4x12), and the "StrongBack" (4x12).
The "Free Rock2" and the "Romanum2" are "relatively" transparent.
Just some thoughts for anyone experimenting with creating Presets, don't think that you are stuck with "Bass" specific cabs.
My guess the sampling/processing didn't process in the actual electrical/acoustic limitations of the cabs, just their general tones.
Very cool, IMO!!!