Union Jack Amplification

Union Jack Amplification is a brand known for producing high-quality guitar amplifiers, particularly boutique models that are hand built in the United States. The company is based in Seattle, Washington, and has a reputation for creating amplifiers that are similar to classic Marshall designs, such as the JCM 800. These amplifiers are often favored by professional musicians, including Mike McCready of Pearl Jam, who has been associated with the brand.

The brand's amplifiers are characterized by their all-tube circuitry, which provides a loud, pure sound with sparkling clean tones and grungy distortion. They are also known for their custom-built nature, with some models being rare and highly sought after by collectors and musicians alike.