I can get both of them secondhand for roughly the same amount of money. I have one SP212 and I love it with my Genz Shuttlemax 9.2. It's more than enough for small gigs and rehearsals. For the last few months, I have been searching for another SP212 to run them in pair for bigger gigs and now, when one finally showed up, I got crazy good offer for Markbass 104HF, 8ohms, practically a steal.
I know how Markbass 102HF sounds like (I have had two of these), so I guess 104HF is in the same sound ballpark, only bigger sounding. I only wish the cab I was offered was 4ohms instead of 8 because I don't ever see myself pairing it with another one.
I also know how SP212 sounds like because I own one. Honestly, SP212 works better for me because it has bigger lows than Markbass 102HF, so I guess two of them should sound bigger than 104HF.
I'm leaning towards SP212 and I'm pretty sure I'll take it, but I wanted to hear it from you.. Is there any reason I should prefer Markbass over Orange? I really play a variety of styles, from hip-hop to alternative rock and fusion. I do miss some treble in Orange, but it generally sounds so sweet that it doesn't really bother me. I'm not into tweeter sound anyway.