"The stage is packed with props, but Purgason’s amps and cabs are cleverly hidden in set carts to prevent damage. His rig is fairly simple: a pair of 4-channel Engl E530 tube preamps and a 6L6-powered Engl 850/100 tube power amp running through a blood-soaked Krank 4x12 cab," states [this](http://www.premierguitar.com/ext/resources/images/content/2014-12/RRs/Gwar/pust-amps-web.jpghttp://www.premierguitar.com/articles/21840-rig-rundown-gwar-2014) rig rundown, by Premier Guitar.more
I am a big fan of ENGL for years and I was looking for something cool and compact, which could produce the typical tube ENGL sound, but could be used for silent recording. Well, the E530 is a really great solution for such purposes. I even use it with no additional plugins or simulations - just a small EQ via my Boss GT-8, plugged in the fx loop - these devices are a wonderful combination to put in your bag and go kicking some ass with a cool sound, still caring just a sack, but not large and heavy stuff.