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Daniel Hertz provides consulting services to major companies like LG Electronics of Korea and semiconductor firm Intersil of the USA. Daniel Hertz was founded in 2007 by Mark Levinson, who had previously founded Mark Levinson Audio Systems, Cello Ltd. and Red Rose Music. The company name combines the given name of Levinson's father with his ...
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.
[5] [6] They typically have narrow-band, nearly sinusoidal waveforms with amplitudes up to a few microbars, [7] [8] and wave periods near 5 seconds (0.2 hertz). [ 9 ] [ 10 ] Due to low atmospheric absorption at these low frequencies , microbaroms can propagate thousands of kilometers in the atmosphere, and can be readily detected by widely ...
Early speaker from Vega Labs. Cerwin-Vega was founded as Vega Associates [4] (with later name changes to Vega Laboratories and then Cerwin-Vega) by aerospace engineer Eugene J. "Gene" Czerwinski (1927–2010) in 1954, [4] and became noted for producing an 18" speaker capable of producing 130 dB in SPL at 30 Hz, an astonishing level during its time.
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These speakers introduced the concept of a small box/long excursion woofer designs for car audio. The CS-1 series was also introduced, JL Audio's first component speaker introduction. In 1993 , the W6-series subwoofer drivers are introduced in 8, 10, 12 and 15-inch sizes.