Mesa/Boogie

"One early proponent of [Randall] Smith's work [in manufacturing guitar amplifiers] was counterculture legend Carlos Santana, a relationship that endures to this day. Anyone who has heard [Carlos] Santana's singing sustains and harmonically-rich driven tone will be familiar with the sound of a Mesa/Boogie amplifier. However, these are far from a one-trick pony. They are renowned for their exceptional build quality and rich sounds that cover a broad sonic spectrum. That helped to set a new standard in the world of high-gain amplification, originally saturated by British brands."

"Mesa/Boogies do tend to be rather bewildering in both their variety and complexity - and are often misunderstood."