I've been a Mesa guy for nearly 15 years but I tell ya the first time i heard the ENGL Powerball and Fireball amps I was blown away and now I"m an ENGL guy. I just cant afford one now! Seriously if you love Mesa check out the Engl stuff. I believe Andy James plays through a Powerball on his video for "What lies beneath" and the tone is just sickly amazing. Check it out.