My setup is 300watt and it is super loud. I have the power amp volume all the way up and my helix volume never goes over 1/3 of the way up. This is with the whole band (metal music) drums and all.
Opened a ticket and will be sending it out soon. I'm more sad than anything though because since I've been playing around with it I don't want to go back to my hd500. 😢