Hmm. I love his playing and tone but am not a big follower or "knower" of his usual rigs/gear but I've seen him on tv a couple times, a few years back, and he was always playing a burst into a 1959SLP. It was a pretty "signature" Paul into a Marshall tone of awesomeness.
"When you're Warren and have Diaz and PRS gear on hand, why go for the Marshall? "
Uhhhh...cause it's Marshall??
I've never played a Diaz or PRS amp but I have plenty of amps...old ones, new ones...and anytime I treat myself to pulling-out a vintage Marshall head...well, it's a great day.
For me, if you really want that good old Marshall "stuff"...if you don't need switching channels, cascaded gain stages, effects loops, reverb etc...if you're into that plexi or early metalface vibe, a marshall gets you right there.
And now...off I go to see what the Diaz amps are all about. Maybe I should hit the medicine cabinet first and chew-up a pair of tums or rolaids or suck on a bottle of pepto. You know...cause ALL I need is more amp GAS :-(
I BETTER not be back in a week or two with a NAD post.!
;-)