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1946 – JBL creates the original 'JBL signature' logo with an exclamation (!) in black and white. Designed by Jerome Gould [11] 1946 – Lansing leaves Altec and founded a new company, James B. Lansing Sound Inc. 1947 – JBL has a 15" speaker (38 cm), model D-130, using for the first time a 4" (100 mm) voice coil in a speaker cone; 1949 ...
SpeakerCraft was founded in 1976 by Edward Haase, Ken Humphreys and Eugene Humphreys. [2] Beginning as a retail stereo store and original equipment manufacturer of loudspeakers for companies such as Sonance, Niles Audio, Bang and Olufsen, JBL, Polk Audio, and many others, the company evolved into a designer and installer of custom audio systems.
From about 1900 to the 1950s, the "lowest frequency in practical use" in recordings, broadcasting and music playback was 100 Hz. [9] When sound was developed for motion pictures, the basic RCA sound system was a single 8-inch (20 cm) speaker mounted in straight horn, an approach which was deemed unsatisfactory by Hollywood decisionmakers, who hired Western Electric engineers to develop a ...
Amazon's annual list of the 100 best Valentine's Day gifts includes options for men, women, and kids.
A woofer or bass speaker is a technical term for a loudspeaker driver designed to produce low frequency sounds, typically from 20 Hz up to a few hundred Hz. The name is from the onomatopoeic English word for a dog's deep bark, "woof" [1] (in contrast to a tweeter, the name used for loudspeakers designed to reproduce high-frequency sounds, deriving from the shrill calls of birds, "tweets").
It is not attached to a voice coil or wired to an electrical circuit or power amplifier. Small [1] [2] and Hurlburt [3] have published the results of research into the analysis and design of passive-radiator loudspeaker systems. The passive-radiator principle was identified as being particularly useful in compact systems where vent realization ...