Super Tweeter
Encyclopedia
A super tweeter is a speaker driver
Speaker driver
A speaker driver is an individual transducer that converts electrical energy to sound waves, typically as part of a loudspeaker, television, or other electronics device. Sometimes the transducer is itself referred to as a speaker, particularly when a single one is mounted in an enclosure or as...

 intended to produce ultra high frequencies in a multi-driver loudspeaker system. Its purpose is to recreate a more realistic sound field, often characterized as "airy-ness". Super tweeters are sometimes found in high fidelity speaker systems and sometimes even in home theater systems. They are used to supplement the sound of tweeters by reproducing frequencies which the tweeter may produce only with a narrow polar output, or perhaps with distortion.

An early example of a super tweeter used in a commercial design is the microphone element derived 4001 from STC
STC
- Education :* S. Thomas' College, Mt Lavinia, a private school in Sri Lanka* South Texas College* South Thames College* Sha Tin College, Hong Kong* Saint Theresa's College, Philippines- Organizations :* Scarborough Town Centre* Space Transport Corporation...

, used in the Bowers & Wilkins
Bowers & Wilkins
Bowers & Wilkins is a British loudspeaker company that produces mid-range through reference quality hi-fi and home theater speakers. The company name is often abbreviated to just B&W.Joe Atkins is current owner and chairman...

 DM3 and several subsequent models. These were basically two-way designs using the STC 4001 as a super tweeter. Ohm
Ohm
The ohm is the SI unit of electrical resistance, named after German physicist Georg Simon Ohm.- Definition :The ohm is defined as a resistance between two points of a conductor when a constant potential difference of 1 volt, applied to these points, produces in the conductor a current of 1 ampere,...

, the Brooklyn
Brooklyn
Brooklyn is the most populous of New York City's five boroughs, with nearly 2.6 million residents, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated...

-based speaker manufacturer, uses super tweeters in their Walsh and MicroWalsh speaker lines, which several reviewers have concluded offer a more pristine high-end response.

A super tweeter is generally intended to respond well into ultrasonic frequencies over 20 kHz, the commonly accepted upper frequency limit of human hearing. One super tweeter has been designed to respond up to 100 kHz. This super tweeter was designed to eliminate the problem of the normal tweeter
Tweeter
A tweeter is a loudspeaker designed to produce high audio frequencies, typically from around 2,000 Hz to 20,000 Hz . Some tweeters can manage response up to 65 kHz...

diaphragm continuing to move after a signal has ceased.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK