Specifications System Type: Compact Bi-amplified 3-Way High Directivity Line Array Element Sensitivity: (2.83v/m) 97 dB LF, 101 dB MF/HF Components: 2 x 2168J 8 in. LF, 4 x 2104H 4 in. MF, 2 x 2407H HF NomInal Impedances: 8 ohm LF, 8 ohm MF/HF Horizontal Coverage (-6dB): 100 degrees nominal, 500Hz - 16kHz Power Rating: 1000W LF, 225W MF/HF Frequency Range (-10dB): 60 Hz - 22 kHz Dimensions (H x W x D): 279 mm x 787 mm - 417 mm (11 in. x 31 in. x 16.4 in.)
James Bullough Lansing was born James Martini, 14 January 1902, in Macoupin County, Millwood Township, Illinois. His parents were Henry Martini, born in St. Louis, Missouri, and Grace Erbs Martini, born in Central City, Illinois. The elder Martini was a coal mining engineer, and his work required that the family moved about quite a bit during Lansing's early years. Lansing was the ninth of fourteen children, one of whom died in infancy. For a short time, Lansing lived with the Bullough family in Litchfield, Illinois. He later took their name when he changed his from Martini to Lansing.
Not much is known about Lansing's early days, and we are indebted to Bill Martin, one of three surviving brothers, for providing most of the information presented here. Lansing graduated the eighth grade at the Lawrence School in Springfield, Illinois. He also attended the Springfield, Illinois, High School. Later, he took courses in a small business college in Springfield.
As a young lad he was very interested in all things electrical and mechanical. At about the age of 10, he built a Leyden Jar which he used to play pranks on his playmates. He also constructed crystal sets, and at one time, probably about the age of 12 or so, built a small radio transmitter from scratch. The signals from this set were apparently strong enough to reach the Great Lakes Naval Station in Illinois; naval personnel determined the source of these signals and later supervised the timely dismantling of the young Lansing's radio transmitter.
For a while Lansing worked as an automotive mechanic, specializing in fine engine repair work. He attended an automotive school for mechanics in Detroit through the courtesy of the dealer he worked for in Springfield.
Lansing's mother died 1 November 1924 at the age of 56, and at that time Lansing left home. As best we can determine, he went directly to Salt Lake City. Mrs. Lansing, the former Glenna Peterson of Salt Lake City, tells of meeting Lansing in 1925 in that city. At the time he was working for a radio station as an engineer. In addition, he worked for the Baldwin loudspeaker company in Salt Lake City for a time. He also met his future business partner, Ken Decker, in Salt Lake City.
5000 - 10000 Lumens
- A projector that produces 5000 - 10000 lumens of light.. Used . . Used . ...Joule
- A term in the international system for a unit of electrical, mechanical, and thermal energy equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second. Used . . Surge protectors are often given joule ratings, but this rating refers only to the amount of energy they can absorb, not what gets through. Its value was calculated originally by James Pr. Used . escott Joule, but the term was first introduced by Dr. Mayer of Heilbronn....MS
- A stereo recording technique that uses of two different types of microphones, a directional or cardioid for the M facing forward and an omni-directional or figure-eight for the S with the lobes at a 9. Used . 0 degree angle. The main advantage being that the center sounds are not 45 degrees off-axis eliminating the gap in XY recording. Initially there were problems with reflections due to the use. Used . of two different types of mics, however mics have now been developed to overcome this problem....Wing
- A breakout box or extension console that expands the current consoles capabilities by adding additional tactile faders and controls. Generally applied to lighting control consoles and adapted from a . Used . theater term used to describe the sides of the stage not visible to the audience where the actors make their entrances. . Used . ...Delay
- Delay is an audio effect which records a signal or sound and then plays it back after a period of time. The delayed signal may be played back multiple times or looped back into the recording again to . Used . create the sound of a repeating decaying echo. Unlike reverb, which uses reflected sound to produce many echos, delay has greater control over the number of times the sound is echoed. . Used . ...
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