{{otheruses, Boulder (disambiguation)
Boulder Amplifiers is a private corporation founded in Boulder, Colorado in 1983 by Jeff Nelson as a manufacturer of
high-end
In economics, a luxury good (or upmarket good) is a good for which demand increases more than what is proportional as income rises, so that expenditures on the good become a greater proportion of overall spending. Luxury goods are in contrast t ...
professional audio
Professional audio, abbreviated as pro audio, refers to both an activity and a category of high quality, studio-grade audio equipment. Typically it encompasses sound recording, sound reinforcement system setup and audio mixing, and studio mu ...
electronics.
The early, primary technology used to distinguish Boulder from other audio manufacturers was the use of the 990 discrete gain stage, based on the original work of Deane Jensen.
In subsequent years, Boulder Amplifiers have shifted their focus from studio electronics to
high-end audio
High-end audio is a class of consumer home audio equipment marketed to audiophiles on the basis of high price or quality, and esoteric or novel sound reproduction technologies. The term can refer simply to the price, to the build quality of the ...
electronics utilizing an updated third- and fourth-generation variant of the 990 gain stage and are primarily known for creating products with no limits on retail price, extremely complex engineering, and chassis design which doubles as industrial art.
Stereophile
''Stereophile'' is a monthly American audiophile magazine which reviews high-end audio equipment, such as loudspeakers and amplifiers, and audio-related news.
History
Founded in 1962 by J. Gordon Holt. ''Stereophile'' is the highest-circulation ...