The Mesa Boogie Mark IV head is a seriously versatile tube amp, packing a huge range of features and tons of tone-shaping ability into a rugged chassis that's built for the road. With two distinct rhythm channels for chiming cleans through fat breakup, a lead channel that scorches and screams, and Boogie's famous five-band graphic EQ, the Mark IV covers a ton of ground and slides nicely into all sorts of genres and playing styles. Rounded out by switchable power section modes, a spring reverb, and an assignable FX loop, the Mark IV head lands squarely in a killer lot of classic tube amps.