• Año
  • 1959 ?
  • Categoría
  • Altavoz, cascos o auricular
  • Radiomuseum.org ID
  • 354489

 Especificaciones técnicas

  • Gama de ondas
  • - no hay
  • Tensión de funcionamiento
  • No necesita alimentación
  • Altavoz
  • Altavoz dinámico (de imán permanente)
  • Material
  • Material especial, que se describe en las notas.
  • de Radiomuseum.org
  • Modelo: Treble Twin Tweeter - Magnum brand Burne-Jones & Co.
  • Forma
  • Formas varias descritas en notas aparte.
  • Anotaciones
  • Treble Twin

    Two nominally similar loudspeakers are used, thus giving a larger radiating area. Because the sound from the two speakers is combined, any differences between their responses are evened out. The two loudspeakers are connected electrically in phase and face each other; each also faces a single cone reflector as in the photograph.
    This arrangement gives a uniform distribution of sound in the plane at right angles to the loudspeaker and reflector cone axes (this plane is vertical and at right angles to the paper for this photograph). Moreover, the sound is beamed within a few tens of degrees (+20° at 4kc/s) of this plane.
    The bracket for mounting this loudspeaker unit on the wall is shaped so as to allow the plane in which the sound distribution is uniform to be made horizontal or vertical, thus giving a choice between uniform or beamed sound in a horizontal plane.

    See also the single version, Treble 20.

  • Precio durante el primer año
  • 9.61 GB £
  • Autor
  • Modelo creado por Gary Cowans. Ver en "Modificar Ficha" los participantes posteriores.

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