Dream Theater's revered guitarist John Petrucci checks in from the Mesa/Boogie factory in Petaluma, CA to discuss his Mark V head + settings, and the philosophy behind the tones he uses in his guitar playing, both live and in the studio.
 
Part 1 details Mark V channels 1 and 2 settings with playing examples, and part 2 shows channel 3 - Petrucci's favorite of the three channels -- also with playing examples. Watch both videos below, and for more from John Petrucci, including his Year in Review and his thoughts on Dream Theater's recent induction into the Long Island Music Hall of Fame, go right here.