The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.

The JBL 4642A is a high quality subwoofer system, featuring a technologically advanced 460 mm (18 in) low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies. The 4642A is …

4642a 是一个高质量的低音炮系统，具有先进的技术， 460 毫米（ 18 英寸），安装在一个直接辐射低频换能器，以最低可听频率响应平滑的低音反射罩。 是理想的 4642a 在电影剧院和一般扩声应用模拟或数字音轨的低频增强。

JBL 影院次低频扬声器 JBL 4642A；频率范围22Hz - 500Hz (-10dB)；额定功率1200W；阻抗4/8 欧姆；分频点 80 to 100Hz ；灵敏度 101dB SPL @ 1W,1m ；低频驱动器(S) 2 x 2241H ；

The JBL 4642A is a high-quality subwoofer system, featuring a technologically advanced 460 mm (18 in) low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.

The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.

4642A影院次低频扬声器. •双460-mm(18英寸)单元. •应用了VGCTM (孔隙冷却技术)2241H低频换能器 •1200瓦功率，平滑的频率响应

The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.

The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.

The JBL Model 4642A is a high quality subwoofer system, featuring an advanced technology 460 mm (18 in), low frequency transducers mounted in a direct radiator, bass-reflex enclosure for smooth response to the lowest audible frequencies.