What are amplifiers?

Some articles on amplifiers, amplifier:

Standel - History - Ascent To Popularity
... attending local concerts in order to spread the word about his amplifiers and get musicians to test them ... He liked it and ordered the very first Standel amplifier that same night ... They ordered the second and fourth Standel amplifiers ...
Standel - Technical Achievements
... Standel was a pioneer in modern amplifier design, the following are some of the company's achievements ... First to use JBL speakers in a musical instrument amplifier First to use padded upholstery First amplifier to have illuminated dials First closed-back bass ...
List Of Bass Amplifier And Loudspeaker Manufacturers
... This article lists manufacturers of bass amplifiers, loudspeakers, and other amplification-related items such as preamplifiers ... The amplifiers and loudspeakers used to amplify bass instruments (e.g ... distinction affects the design of the loudspeakers, the cabinet, and the preamplifier and amplifier ...
Stevie Ray Vaughan's Musical Instruments - Amplifiers - Studio Equipment
... On Texas Flood, Vaughan borrowed a Howard Dumble amplifier from Jackson Browne, and he later bought a 150-watt Dumble Steel String Singer ... Besides Dumble, he also used Mesa Boogie amplifiers and a Groove Tubes pre-amp ... his addictions, Vaughan became especially obsessed with the sound produced by his amplifiers ...