Kazranos Charvat, two pre-amplifiers are used with a battery powered high voltage supply. The Accuton C is an interesting tweeter for several reasons. These criteria are simply two faces of the same coin. This article was originally published in Voice , October This article was originally published in audioXpress, May The square wave is fed into a small audio power op-amp. June 28, by Vance Dickason Test Bench: This article illustrates the problem for the midrange driver in a three-way system, which will be crossed over to a woofer on the low end and a tweeter on the high-end. This article was originally published in Voice Coil, December This circuit enables the full galvanic isolation of sound frequency signals with optical transmission in excellent quality, eliminating interference.

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While Dolby was mostly known for his work in noise reduction and electronics, his surround-sound invention had an enormous impact on the loudspeaker industry see Photo 1.

While at San Jose State College and later at Stanford University interrupted by two years of Army service , he worked on early video tape recorder prototype technologies for Alexander M. Poniatoff and Charlie Ginsburg. In , Dolby received his BS in electrical engineering from Stanford. In , he returned to England, where he founded Dolby Laboratories in London with a staff of four.

In that same year, he officially founded the London-based Dolby Laboratories and invented the Dolby Sound System, a form of electronic filter. However, his first US patent was not filed until , four years later. UK-based Decca Records first used the filter. Probably his most famous invention was the surround-sound technology now used in movies, cinemas, PCs, and home theater equipment.

Ray Dolby was on the Forbes Fortune list in , the fruits of an amazing career. Bob Diamond Bob Diamond — It is with great regret that I announce the passing of Bob Diamond, another outstanding member of the loudspeaker engineering community. He began his career as an Acoustical Engineer at International Jensen He left Aurasound and formed Diamond Audio Technology, a company that bore his name, as president from — He spent the last two years of his life caring for his grandson Corbin, for whom he was putting together a college education fund.

His untimely death prevented this, but a group of friends and family have established the Bob Diamond Memorial Fund. To contribute, visit www. I personally knew Bob Diamond. He had a great sense of humor and was an excellent loudspeaker engineer. Mason said he was familiar with THIEL and he has tremendous respect for what the brand has achieved in the three-plus decades since it was founded. Consumer Confidence Grows Consumer confidence in technology spending reached the highest level in , while sentiment toward the overall economy dipped in August, according to the Consumer Electronics Association CEA.

The ICE remains 6. New data is released on the fourth Tuesday of each month. The CEA has been tracking index data since January For more information, visit CEAindexes.





New Q B12 Subwoofer for Immersive Home Cinema Sound from Q Acoustics


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