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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 ...
The JBL Paragon, measuring almost 9 feet (2.7 m) from left to right. The JBL D44000 Paragon is a one-piece stereo loudspeaker created by JBL that was introduced in 1957 and discontinued in 1983; its production run was the longest of any JBL speaker. [1] At its launch, the Paragon was the most expensive domestic loudspeaker on the market. [2]
Audio power is the electrical power transferred from an audio amplifier to a loudspeaker, measured in watts. The electrical power delivered to the loudspeaker, together with its efficiency , determines the sound power generated (with the rest of the electrical power being converted to heat).
James Bullough Lansing (born James Martini, January 2, 1902 – September 29, 1949) was a pioneering American audio engineer and loudspeaker designer who was most notable for establishing two audio companies that bear his name, Altec Lansing and JBL, the latter taken from his initials, JBL.
1.0 dJ (0.024 cal) centijoule: cJ ... Watt-hour multiples: terawatt-hour: TWh TWh 1.0 ...
Sound reinforcement in a large format system typically involves a signal path that starts with the signal inputs, which may be instrument pickups (on an electric guitar or electric bass) or a microphone that a vocalist is singing into or a microphone placed in front of an instrument or guitar amplifier.
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