i have a Fireball.. and Nailbomb hb.
Its a thrash MONSTER.
Half gain, deep switch + bright on, roll off treb, boost the mids and bass... tight, crunchy and awesome!
I will do some clips when i get my guitar back from being tweaked\having a sinner fitted.
The Fireball IS amazing mate, you'll only ever need about half gain so the 'clean' channel is still clean and sparkly (shared gain...).
Bit of delay and its amazing for lead too..
the more you push the gain the deathier it gos (crank it and nail Strapping Young Lad level crunch!)
I listen\play everything from PROPER thrash like Overkill, Destruction, Sodom and Kreator to trivium,in flames, bodom, edguy, dragonforce etc etc and the amp will do it all :twisted:
Put it this way, i spent the first 3hours on my 1st proper testing the amp run that i simply hit open e power chords with varying degrees of gallop and palm mute... look up 'ultra tight crunchy ball breaking face melting goodness x10' on google and it'll be an ENGL Fireball powered by a BKP 8)
*** sorry to go all fanboy... the proof is in your own playing\hearing after all... but i was blown away.. and i've had my share of amps!**