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Coral
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Coral Beta 8A Breitbandlautsprecher
Coral Beta 8A
15
views this month
Posted On
16.07.2025
Last Update On
16.07.2025
Description
Original Description is in
German
, other language texts are translations and can contain errors.
English
Deutsch
Spanish
Turkish
Coral Beta 8A full-range speaker in perfect condition! The Coral Beta-8A is a classic Japanese-made 20 cm full-range loudspeaker produced in the second half of the 1970s and early 1980s. It is a disposable chassis with a double-walled paper cone, a permanently installed metal phase plug and an aluminum die-cast basket. The nominal impedance is 8 ohms. The power handling varies depending on the source between 16 watts (early series) and up to 35 watts for the later versions. The lower cut-off frequency (resonance frequency) is around 37 to 42 Hertz, the frequency range in principle reaches over 18 kHz, with the level in the high-frequency range dropping gently. The efficiency is about 94 to 95 dB at 1 watt/1 meter. The Coral Beta-8A has been developed especially for use in rear-ventilated horn systems, open baffles or as a full-range module in compact housings. It is considered to be very fine-grained, open and high-resolution in the midrange and high-frequency range. The mechanical quality meets the high manufacturing standards of Japanese drivers of that era. The driver can be operated without a crossover, but also offers potential for targeted correction measures via notch or baffle step filter, depending on the housing concept.
Coral Beta 8A Breitbandlautsprecher in einwandfreiem Zustand! Der Coral Beta-8A ist ein klassischer 20-cm-Breitbandlautsprecher aus japanischer Fertigung, der in der zweiten Hälfte der 1970er- und frühen 1980er-Jahre produziert wurde. Es handelt sich um ein Einwege-Chassis mit doppelwandigem Papierkonus, fest verbautem Phase-Plug aus Metall sowie Aluminium-Druckgusskorb. Die Impedanz beträgt nominell 8 Ohm. Die Belastbarkeit variiert je nach Quelle zwischen 16 Watt (frühe Serien) und bis zu 35 Watt bei den späteren Ausführungen. Die untere Grenzfrequenz (Resonanzfrequenz) liegt bei etwa 37 bis 42 Hertz, der Übertragungsbereich reicht prinzipiell bis über 18 kHz, wobei der Pegel im Hochtonbereich sanft abfällt. Der Wirkungsgrad beträgt etwa 94 bis 95 dB bei 1 Watt/1 Meter. Der Coral Beta-8A wurde insbesondere für den Einsatz in rückseitig belüfteten Hornsystemen, offenen Schallwänden oder als Breitbandmodul in kompakten Gehäusen entwickelt. Er gilt als sehr feinzeichnend, offen und hochauflösend im Mittel- und Hochtonbereich. Die mechanische Qualität entspricht den hohen Fertigungsstandards japanischer Treiber jener Epoche. Der Treiber lässt sich ohne Frequenzweiche betreiben, bietet aber auch Potenzial für gezielte Korrekturmaßnahmen per Notch- oder Baffle-Step-Filter, abhängig vom Gehäusekonzept.
¡Altavoz de rango completo Coral Beta 8A en perfectas condiciones! El Coral Beta-8A es un altavoz clásico de rango completo de 20 cm de fabricación japonesa producido en la segunda mitad de la década de 1970 y principios de la de 1980. Se trata de un chasis desechable con un cono de papel de doble pared, un tapón de fase metálica instalado de forma permanente y una cesta de aluminio fundido a presión. La impedancia nominal es de 8 ohmios. El manejo de la potencia varía según la fuente entre 16 vatios (primeras series) y hasta 35 vatios para las versiones posteriores. La frecuencia de corte más baja (frecuencia de resonancia) es de alrededor de 37 a 42 hercios, el rango de frecuencia en principio alcanza más de 18 kHz, y el nivel en el rango de alta frecuencia cae suavemente. La eficiencia es de aproximadamente 94 a 95 dB a 1 vatio/1 metro. El Coral Beta-8A ha sido desarrollado especialmente para su uso en sistemas de bocina con ventilación trasera, deflectores abiertos o como módulo de rango completo en carcasas compactas. Se considera de grano muy fino, abierto y de alta resolución en el rango medio y de alta frecuencia. La calidad mecánica cumple con los altos estándares de fabricación de los conductores japoneses de esa época. El controlador puede funcionar sin un crossover, pero también ofrece la posibilidad de medidas de corrección específicas a través de un filtro escalonado de muesca o deflector, según el concepto de la carcasa.
Coral Beta 8A tam aralıklı hoparlör mükemmel durumda! Coral Beta-8A, 1970'lerin ikinci yarısında ve 1980'lerin başında üretilen klasik Japon yapımı 20 cm tam aralıklı bir hoparlördür. Çift cidarlı bir kağıt koni, kalıcı olarak monte edilmiş bir metal faz fişi ve bir alüminyum döküm sepeti olan tek kullanımlık bir kasadır. Nominal empedans 8 ohm'dur. Güç kullanımı, kaynağa bağlı olarak 16 watt (erken seri) ile sonraki sürümler için 35 watt'a kadar değişir. Düşük kesme frekansı (rezonans frekansı) 37 ila 42 Hertz civarındadır, frekans aralığı prensip olarak 18 kHz'in üzerine çıkar ve yüksek frekans aralığındaki seviye hafifçe düşer. Verimlilik, 1 watt / 1 metrede yaklaşık 94 ila 95 dB'dir. Coral Beta-8A, özellikle arkadan havalandırmalı korna sistemlerinde, açık bölmelerde veya kompakt muhafazalarda tam kapsamlı bir modül olarak kullanılmak üzere geliştirilmiştir. Orta ve yüksek frekans aralığında çok ince taneli, açık ve yüksek çözünürlüklü olarak kabul edilir. Mekanik kalite, o dönemin Japon sürücülerinin yüksek üretim standartlarını karşılıyor. Sürücü, bir geçit olmadan çalıştırılabilir, ancak aynı zamanda muhafaza konseptine bağlı olarak çentik veya bölme basamak filtresi aracılığıyla hedeflenen düzeltme önlemleri için potansiyel sunar.
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