It's Mark V day at Gearwire! Hot on the heels of the Tascam 202MKV comes the Mesa/Boogie Mark V. Unveiled at Winter NAMM '09, the Mark V is possible the most versatile amp the company's ever built, with three independent channels and nine different modes, not to mention variable wattages, switchable power tube biasing, switchable power class modes, footswitchable five-band EQ. . . oops, looks like I mentioned them.