Mesa Boogie is a well-known manufacturer of high-end guitar amplifiers based in Petaluma, California. The company was founded in the late 1960s by Randall Smith, who was initially focused on modifying existing amplifiers to achieve a more desirable tone. Mesa Boogie amps are highly regarded among guitarists for their high-quality construction, versatile tone shaping capabilities, and innovative features. Some of the most popular models include the Dual Rectifier, Mark series, and the Express series.

The Dual Rectifier is a high-gain amplifier known for its aggressive distortion and tight low-end response. It has been a staple in heavy metal and hard rock music for decades.

The Mark series includes a range of amps, each with their own unique tone characteristics. These amps are known for their high headroom, clarity, and versatility, making them a popular choice for a variety of playing styles.

The Express series is a more affordable line of Mesa Boogie amps that still offer a lot of the same features and tone shaping capabilities as the higher-end models. These amps are known for their compact size and portability, making them a great choice for gigging musicians.

Overall, Mesa Boogie amps are known for their high-quality construction, versatility, and ability to deliver a wide range of tones that can be tailored to suit a variety of playing styles.