I have an F210. It's rated sensitivity is 92.7db SPL, 1w/1m. That is low, but offset by the 900w rated power dissipation. Just proves the axiom that for a given loud, you can have a small box using lots of power, or a bigger box using not so much power. And so forth. I've had issues gigging with my F210 (posted elsewhere), but I think I've exonerated it and am looking forward to finally giving it a real test in the next couple of weeks.Decent cab, sound is amazing.!, probably the best 2x10 I've ever owned, volume wise for my needs it fell short and I gave up on 2x10 cabs alrogether, I tried soo many, whilst fine for rehearsals and small gigs I soon went back to using a 2x12. What suits someone's needs compared to another's is so subjective It's almost worth not listening to anyone else, ha, imo of course.![]()