Tweeter
A tweeter or treble speaker is a special type of loudspeaker (usually dome or horn-type) that is designed to produce high audio frequencies, typically from around 2,000 Hz to 20,000 Hz (generally considered to be the upper limit of human hearing). Specialty tweeters can deliver high frequencies up to 100 kHz. The name is derived from the high pitched sounds made by some birds, especially in contrast to the low woofs made by many dogs, after which low-frequency drivers are named (woofers).
Operation
Nearly all tweeters are electrodynamic drivers, using a voice coil suspended within a fixed magnetic field. These designs operate by applying current from the output of an amplifier circuit to a coil of wire, called a voice coil. The voice coil produces a varying magnetic field, which works against the fixed magnetic field of a magnet around which the cylindrical voice coil is suspended, forcing the voice coil—and the diaphragm attached to it—to move. This mechanical movement exactly resembles the waveform of the electronic signal supplied from the amplifier's output to the voice coil. Since the coil is attached to a diaphragm, the vibratory motion of the voice coil transmits to the diaphragm; the diaphragm in turn vibrates the air — thus creating air motions or audio waves, which we hear as high sounds.
Tweeter (store)
Tweeter, formerly Tweeter Etc. and Tweeter Home Entertainment, was a specialty consumer electronics retailer providing mid and high end electronic equipment, including flat panel TVs, plasma TVs, car radios, home theater systems, GPSs and more. It also focused much of its business on custom installation of electronics for homes and automobiles.
The company had more than 100 stores in 18 U.S. states, mostly along the east coast, but also including Illinois, Texas, California, Nevada and Arizona, operating under the names Tweeter, HiFi Buys, Showcase Home Entertainment and Sound Advice.
The company was founded by Sandy Bloomberg who opened the first store in the Boston area in 1972, and the company quickly expanded throughout New England.
Tweeter continued expanding largely through acquisitions, the first of these being Bryn Mawr Stereo in 1996. It then added Atlanta-based HiFi Buys in 1997, San Diego based DOW Stereo/Video in 1999, Chicago-based United Audio Center and Douglas TV stores in 2000 and Florida-based Sound Advice in 2001. These acquisitions gave Tweeter an instant presence in the Southeast and Midwest during a booming housing market.
Tweeter (disambiguation)
A tweeter is a loudspeaker designed to produce high frequencies.
Tweeter may also refer to:
See also
Podcasts:
Tweeter
ALBUMS
- Planet Boelex released: 2004
- Me and My Friend Lobstah released: 2001
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All These Lives
by: DaughtryDoesn't come down when she calls, "It's time for breakfast"
Momma can't get down those halls fast enough to see
Glass is sprayed across the floor from the broken window
She can't breathe anymore, can't deny what we know
They're gonna find you, just believe
You're not a person, you're a disease
All these lives that you've been taking
Deep inside, my heart is breaking
Broken homes from separation
Don't you know it's violation?
It's so wrong, but you'll see
Never gonna let you take my world from me
The world outside these walls may know you're breathing
But you ain't coming in, but you ain't coming in
Posters hung on building walls
Of missing faces
Months go by without the cause
The clues or traces
They're gonna find you, just believe
You're not a person, you're a disease
All these lives that you've been taking
Deep inside, my heart is breaking
Broken homes from separation
Don't you know it's violation?
It's so wrong, but you'll see
Never gonna let you take my world from me
The world outside these walls may know you're breathing
But you ain't coming in
Shed the light on all the ones
Who never thought they would become
A father, mother asking
Why this world can be so cold?
Doesn't come down when she calls
"It's time for breakfast"
The memories begin to fall
She asks, "When will I be free?"
All these lives that you've been taking
Deep inside, my heart is breaking
Broken homes from separation
Don't you know it's violation?
It's so wrong, but you'll see
Never gonna let you take my world from me
The world outside these walls may know you're breathing
But you ain't coming in
All these lives that you've been taking
Deep inside, my heart is breaking
All these lives that you've been taking
Deep inside, my heart is breaking
All these lives that you've been taking
Deep inside, my heart is breaking
The world outside these walls may know you're breathing
The world outside these walls may know you're breathing