Has anyone owned or tried both amps back to back? I use to own the Ashdown and it is one of my favorite sounding amps. I need to a new amp, I currently own nothing and gig regularly so it's a pain... The R500 looks pretty interesting and I'm wondering if it has really good deep low end like the ashdown. I like the price of the R500 and MB has a good rep as far quality goes from what i can tell. Or any other amp suggestions would be great, I know I could just buy another Ashdown but I want to try something new... My cab is a Berg NV610 Thanks!