I'm just about set to get an Ampeg V-4B with the AV212 cab. I think this is gonna be my go-to buy-it-for-life amp. But I just wanted to test the waters one more time about this amp compared to class D amps, particularly the Mesa Boogie Subway D-800/D-800+. I like the reputation for quality that Mesa has and the fact that their amps are made in USA. However I don't think those little class D amps will get that tone I'm looking for. Will the Ampeg hold up to the little Mesa's and other D class amps as far as durability and quality goes? Since I'll be selling all my 410 setups to get it, it's going to have to be a reliable amp. I will have my ole Peavey TNT 115 as a backup but that's it.