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Loudspeakers in mosques
![A mosque minaret in [[Hyderabad, Pakistan]] fitted with loudspeakers.](https://commons.wikimedia.org/wiki/Special:FilePath/Hyderabad (Red Minaret) cropped.jpg?width=200 "A mosque minaret in [[Hyderabad, Pakistan]] fitted with loudspeakers.")
Loudspeakers were invented in the early 20th century, and they were introduced in mosques in the 1930s, where they are used by a muezzin for the adhan ("call to prayer"), and sometimes for khutbah (sermons).
Community Professional Loudspeakers
Community Professional Loudspeakers is an American manufacturer of loudspeakers and sound reinforcement equipment. The company has been located in the Philadelphia area since its inception in 1968, and has occupied its present location in Chester, Pennsylvania since 1981.
Coaxial loudspeaker
![A [[car audio]] speaker with a coaxial tweeter in front of the woofer](https://commons.wikimedia.org/wiki/Special:FilePath/Infinity Reference 6022si 6.5inch car speaker top view.jpeg?width=200 "A [[car audio]] speaker with a coaxial tweeter in front of the woofer")
![The [[studio monitor]]s over the window are a pair of [[UREI]] 813s, each of which has a horn driver for high frequencies (blue rectangle) and coaxial 15-inch coaxial driver beneath it and a plain 15-inch driver above.](https://commons.wikimedia.org/wiki/Special:FilePath/MCI equipped Studiod.jpg?width=200 "The [[studio monitor]]s over the window are a pair of [[UREI]] 813s, each of which has a horn driver for high frequencies (blue rectangle) and coaxial 15-inch coaxial driver beneath it and a plain 15-inch driver above.")
![Studio monitor loudspeaker from [[Tannoy]] (c. 1990) with a 12 inch (30 cm) bass driver having a second, independent 2-inch-driver for high frequencies in the center. The crossover frequency is 1.400 Hz.](https://commons.wikimedia.org/wiki/Special:FilePath/Tannoy Little Gold monitor - professional studio loudspeaker box.jpg?width=200 "Studio monitor loudspeaker from [[Tannoy]] (c. 1990) with a 12 inch (30 cm) bass driver having a second, independent 2-inch-driver for high frequencies in the center. The crossover frequency is 1.400 Hz.")
LOUDSPEAKER SYSTEM IN WHICH THE INDIVIDUAL DRIVER UNITS RADIATE SOUND FROM THE SAME POINT OR AXIS
Single-source speakers; Dual Concentric; Dual-concentric speakers; Dual-concentric loudspeaker; Coaxial speaker; Coaxial speakers; Coaxial loudspeakers
A coaxial loudspeaker is a loudspeaker system in which the individual driver units radiate sound from the same point or axis. Two general types exist: one is a compact design using two or three speaker drivers, usually in car audio, and the other is a two-way high-power design for professional audio, also known as single-source or dual-concentric loudspeakers.
أمثلة من مجموعة نصية لـ٪ 1
1. Campaign music played over scratchy loudspeakers.
2. Fireworks crackled, loudspeakers blared from trucks and banners covered buses.
3. Over loudspeakers we, the protestors, were praised and thanked.
4. Loudspeakers at the rally blared excerpts of the taped conversations.
5. Settlers with loudspeakers urged soldiers to refuse orders.