SYL LIVE

I know that at least Jed (and maybe Devin too) is a Mesa/Boogie endorser, but that doesn't necessarily mean that's what they use on stage. I don't know if Century Media still has the videos up for the making of Alien, but Jed raves about his Mesas there.
 
The cabinets were Mesa at the show in Hollywood last weekend, and I'm assuming the heads were as well, but they were hidden. :)

Jed Simon is the man!
 
i completely agree. they sound beyond amazing live. you can hear a pin drop between the palm mutes. they were using 5150s when i saw em. killer tone for sure.
 
Don't what amp they are using but there's one thing that matters:
Their playing is ultra tight. I'm pretty sure they sound almost the same whatever amp they are using.
 
Don't forget to give their FOH guy some credit too. The amps and the playing are obviously a critical part of the sound, but great ears at the board really take things to the next level.