It is my darkest sounding cab of what I have by a pretty good margin I admit, but I still really like it’s sound and I tend not to like most gear that’s very dark sounding
My Diezel 412 FL came with all K100’s. Not a bad sound, but not optimal for it either imo. I have mine currently loaded with K100’s crossed with V30’s. It sounds fine like that, but will put my preferred vintage speakers and maybe also some 20 watt Heritage GB’s in it later when I have time. It’s a nice cab imo. I use it more than my Ubercab. Sounds tight, modern, beefy, maybe a little sterile or neutral, but that’s just because my Kerry Wright 412 spoiled me lol
The Omega cabs I’ve tried sounded good, but I think my friend who owns tons of them just kinda overhyped them and his were all loaded with just Eminences, which are not my favorite speakers, so to be fair maybe I didn’t hear them optimally, but as they were I liked his Ubercab and Diezel cab more, which all had their stock celestions in them. My favorite cab is my Kerry Wright, but they are very pricy and no longer available. They’re also rear loaded, so they may not be your thing anyway. I don’t honestly think they’re worth what they are, but still are the best sounding cab I’ve had, so I’m happy to have one in my Arsenal