{"id":32632,"date":"2025-04-08T21:02:09","date_gmt":"2025-04-09T03:02:09","guid":{"rendered":"https:\/\/www.mexicanguitarplayers.com\/tienda\/sin categor\u00eda\/bocina-eighteen-sound-8-8nmb420-8\/"},"modified":"2026-05-01T07:23:20","modified_gmt":"2026-05-01T13:23:20","slug":"bocina-eighteen-sound-8-8nmb420-8","status":"publish","type":"product","link":"https:\/\/www.mexicanguitarplayers.com\/en\/tienda\/audio\/bafles-y-bocinas\/bocinas-y-componentes\/medios\/bocina-eighteen-sound-8-8nmb420-8\/","title":{"rendered":"BOCINA EIGHTEEN SOUND  8  8NMB420\/8"},"content":{"rendered":"<div style=\"text-align: justify\">\n<div>\n<h3>El perfecto control de tu sonido.<\/h3>\n<\/div>\n<div>El transductor 8NMB420 se ha desarrollado en respuesta a un requisito espec\u00edfico del mercado para un controlador mid-bass de 8&#8243; pulgadas que combina una excelente linealidad con una buena eficiencia y capacidades de manejo de alta potencia. EL 8NMB420 est\u00e1 destinado principalmente para su uso como controlador mid-bass en gabinetes de 2 v\u00edas o reflex multi v\u00eda, que comprenden arreglos lineales. Los par\u00e1metros se hab\u00edan elegido para ofrecer una salida de baja frecuencia significativa en un gabinete ventilado con un tama\u00f1o que empieza desde los 20 lt con una frecuencia de sintonizaci\u00f3n de alrededor de 60 Hz. El filtro pasa-bajos podr\u00eda colocarse tan alto como 2,000 &#8211; 2,500 Hz. Se pueden usar m\u00faltiples unidades 8NMB420: el tama\u00f1o compacto se refleja en la capacidad de tener un tiempo de ataque preciso. Esta caracter\u00edstica lo convierte en la opci\u00f3n ideal para monitorizaci\u00f3n de escenario y la amplificaci\u00f3n de bajos. El extremadamente poderoso conjunto de im\u00e1n de neodimio externo asegura una alta concentraci\u00f3n de flujo, baja compresi\u00f3n de energ\u00eda y un excelente intercambio de calor. Los niveles de factor de fuerza y manejo de potencia est\u00e1n, como consecuencia, en el nivel profesional superior con la mejor relaci\u00f3n potencia\/peso. El exclusivo dise\u00f1o envolvente de doble rollo dedicado, ofrece un mejor control y desplazamiento lineal para reproducir con precisi\u00f3n la frecuencia baja. El cono de papel curvil\u00edneo se forma utilizando una composici\u00f3n \u00fanica de pulpa de madera dise\u00f1ada para lograr la mejor rigidez posible. La bobina m\u00f3vil de aluminio de 50 mm en el exterior, emplea la tecnolog\u00eda Interleaved Sandwich (ISV). Est\u00e1 compuesto por un embobinador de fibra de vidrio de alta resistencia que se utiliza para transportar devanados en las superficies interior y exterior para lograr una bobina m\u00f3vil de masa equilibrada. Esto da como resultado un conjunto de motor extremadamente lineal que junto con el dise\u00f1o altamente avanzado de la estructura magn\u00e9tica, proporciona un alto factor de fuerza o BL. La bobina m\u00f3vil se enfr\u00eda incorporando v\u00edas de aire entre la placa posterior del chasis y la placa frontal del im\u00e1n, de manera que el aire caliente se canaliza lejos de la bobina m\u00f3vil y el espacio se disipa por la canasta del chasis. Gracias al uso cada vez mayor durante eventos de audio al aire libre, la capacidad de funcionar en ambientes h\u00famedos es una caracter\u00edstica clave del 8NMB420. Esto se logra a trav\u00e9s de un tratamiento patentado de cono repelente a la humedad sin un aumento de masa del altavoz en movimiento.<\/div>\n<div>\n<h4>Quick look<\/h4>\n<\/div>\n<ul style=\"margin: 0px 0px 0px 25px\">\n<li style=\"list-style-type: circle;margin: 5px\">Di\u00e1metro nominal.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Nominal impedance.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Power.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Sensitivity.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Rango de frecuencia.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Compresi\u00f3n.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Frecuencia m\u00e1xima recomendada.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Volumen recomendado del gabinete.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Impedancia m\u00ednima.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Excursi\u00f3n m\u00e1xima pico a pico.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Di\u00e1metro de la bobina m\u00f3vil.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Material de la bobina m\u00f3vil.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Suspensi\u00f3n.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Cono.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">FS (Frecuencia de resonancia).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Resistencia DC.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">SD (Superficie efectiva).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">QMS (Factor de calidad mec\u00e1nica).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">QES (Factor de calidad el\u00e9ctrica).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">QTS (Factor de calidad total).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">VAS (Volumen de aire equivalente a CMS).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">MMS (Masa total del cono).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Factor BL <\/li>\n<li style=\"list-style-type: circle;margin: 5px\">XMAX (Desplazamiento m\u00e1ximo).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Inductancia de la bobina m\u00f3vil (Le @ 1kHz).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Referencia de eficiencia 1W\/1m (espacio medio).<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Di\u00e1metro total.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Numero de agujeros de montaje y tornillo.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Di\u00e1metro de los agujeros de montaje.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Di\u00e1metro del c\u00edrculo del perno.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Corte de montaje frontal del bafle.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Corte de montaje posterior del bafle.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Profundidad total.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Espesor de  brida y junta.<\/li>\n<li style=\"list-style-type: circle;margin: 5px\">Weight.<\/li>\n<\/ul>\n<div>\n<div style=\"font-weight: bold\">Di\u00e1metro nominal.<\/div>\n<div>\n<p>8\u201d pulgadas (200 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Nominal impedance.<\/div>\n<div>\n<p>8 ohms.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Power.<\/div>\n<div>\n<p>AES: 280 W. Programa: 400 W. Pico: 800 W.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Sensitivity.<\/div>\n<div>\n<p>95 dB.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Rango de frecuencia.<\/div>\n<div>\n<p>60 &#8211; 5,500 Hz.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Compresi\u00f3n.<\/div>\n<div>\n<p>A -10 dB: 0.8 dB. A -3 dB: 1.7 dB. A potencia total: 2.2 dB.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Frecuencia m\u00e1xima recomendada.<\/div>\n<div>\n<p>2,500 Hz.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Volumen recomendado del gabinete.<\/div>\n<div>\n<p>10 &#8211; 40 lt. (0.35 &#8211; 1.41 pies c\u00fabicos).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Impedancia m\u00ednima.<\/div>\n<div>\n<p>5.9 ohms a 25\u00b0C.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Excursi\u00f3n m\u00e1xima pico a pico.<\/div>\n<div>\n<p>0.7\u201d pulgadas (19 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Di\u00e1metro de la bobina m\u00f3vil.<\/div>\n<div>\n<p>2\u201d pulgadas (51 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Material de la bobina m\u00f3vil.<\/div>\n<div>\n<p>Aluminio.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Suspensi\u00f3n.<\/div>\n<div>\n<p>Rollo-M, poli algod\u00f3n.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Cono.<\/div>\n<div>\n<p>Curvil\u00edneo, papel tratado.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">FS (Frecuencia de resonancia).<\/div>\n<div>\n<p>61 Hz.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Resistencia DC.<\/div>\n<div>\n<p>5 ohms.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">SD (Superficie efectiva).<\/div>\n<div>\n<p>0.022 sq.mt. (34.1 sq.in.).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">QMS (Factor de calidad mec\u00e1nica).<\/div>\n<div>\n<p>4.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">QES (Factor de calidad el\u00e9ctrica).<\/div>\n<div>\n<p>0.31.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">QTS (Factor de calidad total).<\/div>\n<div>\n<p>0.28.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">VAS (Volumen de aire equivalente a CMS).<\/div>\n<div>\n<p>33 lt.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">MMS (Masa total del cono).<\/div>\n<div>\n<p>14.9 gr.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Factor BL <\/div>\n<div>\n<p>10 Tm.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">XMAX (Desplazamiento m\u00e1ximo).<\/div>\n<div>\n<p>\u00b1 5,75 mm (\u00b10.23\u201d pulgadas).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Inductancia de la bobina m\u00f3vil (Le @ 1kHz).<\/div>\n<div>\n<p>0.35 mH.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Referencia de eficiencia 1W\/1m (espacio medio).<\/div>\n<div>\n<p>95.6 dB.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Di\u00e1metro total.<\/div>\n<div>\n<p>8.3\u201d pulgadas (210 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Numero de agujeros de montaje y tornillo.<\/div>\n<div>\n<p>6.<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Di\u00e1metro de los agujeros de montaje.<\/div>\n<div>\n<p>0.23\u201d pulgadas (6 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Di\u00e1metro del c\u00edrculo del perno.<\/div>\n<div>\n<p>7.68\u201d &#8211; 7.8\u201d pulgadas (195 &#8211; 198 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Corte de montaje frontal del bafle.<\/div>\n<div>\n<p>\u00d8 7.3\u201d pulgadas (186 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Corte de montaje posterior del bafle.<\/div>\n<div>\n<p>\u00d8 7,2\u201d pulgadas (184 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Profundidad total.<\/div>\n<div>\n<p>3.9\u201d pulgadas (99 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Espesor de  brida y junta.<\/div>\n<div>\n<p>0.6\u201d pulgadas (14. 5 mm).<\/p>\n<\/div>\n<div style=\"font-weight: bold\">Weight.<\/div>\n<div>\n<p>1.7 kg.<\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Bocina de 8\u201d pulgadas, im\u00e1n de neodimio, anillo demodulador (SDR) para menor distorsi\u00f3n, conos y platos protegidos contra la intemperie para uso en exteriores, ideal para arreglos lineales y sistemas compactos de dos v\u00edas, impedancia: 8 ohms, potencia AES: 280 W, programa: 400 W, pico: 800 W, sensibilidad: 95 dB, rango de frecuencia: 60 &#8211; 5,500 Hz, bobina m\u00f3vil de aluminio de 2\u201d pulgadas (51 mm), peso: 1.7 kg.&hellip; <a class=\"kt-excerpt-readmore more-link\" href=\"https:\/\/www.mexicanguitarplayers.com\/en\/tienda\/audio\/bafles-y-bocinas\/bocinas-y-componentes\/medios\/bocina-eighteen-sound-8-8nmb420-8\/\">Read more<\/a><\/p>","protected":false},"featured_media":32628,"comment_status":"open","ping_status":"closed","template":"","meta":{"kt_blocks_editor_width":""},"pwb-brand":[533],"product_brand":[],"product_cat":[213,221,474,534],"product_tag":[],"class_list":{"0":"post-32632","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"pwb-brand-eighteen-sound","7":"product_cat-audio","8":"product_cat-bafles-y-bocinas","9":"product_cat-bocinas-y-componentes","10":"product_cat-medios","11":"product_shipping_class-0-5-kg","13":"first","14":"instock","15":"taxable","16":"shipping-taxable","17":"purchasable","18":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - 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