Mesa Boogie is dedicated to the tone and creativity of MESA Engineering's famous Mark Series amplifiers. These little giant monsters, first introduced in the early 1970s, have been the ultimate choice of many major top guitar players. Including Santana, The Rolling Stones, The Who and The Grateful Dead, very few if any concerts, stadiums or coliseums have not been seduced by a Boogie. Currently the state of the art Mark line is the Mark IV which represents the height of nearly 30 years of development and enhancements.

One of the most renowned amplifiers in the Mark series arsenal is the Mark IIC+, which have one of the finest clean and lead tones and is the ought-most collectable of the Mark Series Amplifiers. Only 1499 were made between 1983 and 1985. The Mark IIC+ was the 5th in the evolutionary line, from the Mark I, Mark II, Mark IIB and Mark IIC. The Mesa Boogie Mark IIC+ had all the 'deficiencies' of the Mark II line worked out. IIC+ have the sweetest of the lines voicing in the lead channel and the rhythm, although not as vulgar as the IIB which is much smoother.