horn loudspeaker
21Civil defense siren — Federal Signal Thunderbolt 1003 Civil Defense siren. A civil defense siren (also referred to as an air raid siren, tornado siren, tsunami siren, fire siren/whistle, flood siren, weather siren, time/curfew siren, or other outdoor warning siren) is …
22Meyer Sound Laboratories — Type Professional Audio Manufacturer Industry Professional Audio Founded 1979 Headquarters …
23Compression driver — A compression driver is a type of loudspeaker driver which uses the technique of compression to achieve high efficiencies. In this context compression refers to the fact that the area of the loudspeaker diaphragm is significantly larger than the… …
24Oktava — Contents 1 History 2 Timeline 3 External links 4 See also …
25Megaphone — For other uses, see Megaphone (disambiguation). Bullhorn redirects here. For the G.I. Joe character, see Bullhorn (G.I. Joe). For the type of tree, see Bullhorn Acacia. A late 19th century speaking trumpet …
26Tractrix — (from the Latin verb trahere pull, drag ), or tractrice, is the curve along which a small object moves, under the influence of friction, when pulled on a horizontal plane by a piece of thread and a puller that moves at a right angle to the… …
27blare — verb Blare is used with these nouns as the subject: ↑headline, ↑horn, ↑loudspeaker, ↑music, ↑radio, ↑siren, ↑trumpet Blare is used with these nouns as the object: ↑horn, ↑music …
28Rogers International Ltd — Rogers is a British brand name of Rogers International Ltd, a subsidiary of Wo Kee Hong Holdings Ltd, a Chinese company based in Hong Kong that produces a variety of audio electronic products.DescriptionThe company produces a variety of hi fi… …
29earphone — Synonyms and related words: acoustical network, capacitor speaker, coaxial speaker, cone, crossover network, diaphragm, dynamic speaker, electrodynamic speaker, electromagnetic speaker, electrostatic speaker, excited field speaker, full fidelity… …
30headphone — Synonyms and related words: acoustical network, capacitor speaker, coaxial speaker, cone, crossover network, diaphragm, dynamic speaker, earphone, electrodynamic speaker, electromagnetic speaker, electrostatic speaker, excited field speaker, full …
