Transcript
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TD590
CONSTANT DIRECTIVITY HORN
This 2” throat entry horn has been designed in order to provide uniform on and off-axis frequency response, with uncoloured and natural sound reproduction. The constant directivity characteristics of this model ensure the ability to cover 90° wide horizontally and 40° wide vertically, at virtually any frequency within its operational range. Since the response remains essentially constant, equalisation is easily simplified. To ensure freedom of resonance, this flare is constructed of high-density rigid polyurethane foam, with flat front finish to facilitate flush mounting, and an aluminium adapter for precise pattern control. Bocina de 2” de garganta diseñada para proporcionar una respuesta constante tanto en el eje como fuera del mismo con una reproducción neutra y natural. Las características de directividad constante le confieren una cobertura angular de 90° en el plano horizontal y 40° en el vertical, simplificando la ecualización de la respuesta en frecuencia del motor. El acabado plano de la boca facilita el montaje en caja.
SPECIFICATIONS* 49 mm. 2 in. 90° (+20° -10°) (-6dB, 630-16k Hz) 40° (+30° - 10°) Vertical beamwidth (-6 dB, 1.6k - 16k Hz) 10.5 (average 630 - 16k Hz) Directivity factor (Q) 10.1 dB (+0.3 dB, -2.5dB) Directivity index (DI) 800 Hz Cutoff frequency W x H x D: 250 x 280 x 220 mm. Dimensions W x H: 215 x 245 mm. Cutout dimensions 1.2 kg. Net weight 2 kg. Shipping weight Construction Rigid polyurethane foam. Aluminium adaptor. Connection of driver by four screws on a 4 in (101 mm.) diameter bolt circle. Mounting hardware is supplied. Throat diameter Horizontal beamwidth
NOTES *The polar plots are reproduction of measurements done with single sinusoidal signal tones, at the indicated frequencies. The microphone was placed 2 m from the horn. The horn was suspended freely, without baffle, and rotation was about the centre of the emitter source. NOTAS * Los gráficos polares fueron medidos con la bocina situada sobre una mesa giratoria, sin pantalla, con el foco emisor sobre el eje de giro y situando el micrófono de medida a 2 m de distancia de dicho eje. Las señales usadas son tonos puros de las frecuencias representadas.
Horizontal off-axis response
Vertical off-axis response
Polar response: Horizontal response is represented by the heavy lines. Vertical response is represented by the light lines.
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