选择立体声、并行或桥式模式

这四个通道都可以设置为正常立体声操作、并行 输入模式或单桥模式。

立体声模式 - 对内的两个通道是独立的,可用于 两个不同的信号。

并行模式 该设置将声对的两个输入端连在一起。

同一信号输入两个通道。每个通道的增益控制和 扬声器连接都是独立的。

桥式 - 该设置将声对中的两个通道结合为一个通

道,使用两倍的输出电压。只使用第一个通道的 输入端和增益控制。设置第二通道的增益控制为 最小。负载必须为标称的 140V,并按照第六页的

图示连接。(p.38)

在并行或桥式模式下不要连接不同的输入端到 通道对的任一端。

设置低频滤波器

每一通道都有一个 12dB/ 八度音阶低频滤波器,防

70V 扬声器转换器饱和。这会减少失真和防止 放大器超载。

滤波器只有在使用次低音扩音器进行超低频转换 时才能关闭。 50 Hz 设置通常在高质量的扬声器转

换器中工作良好。 75 Hz 设置在演讲级扬声器和变 压器中工作良好。

接线盒输入

每一通道都有一个平衡的 3 针输入端。全套的匹

配连接器都装在包装箱内。可用简单的手工工具 接线,输入更改很快就可以完成。

输入阻抗为 12k 欧姆 (平衡)或 6k 欧姆 (非平 衡)。

对于低交流电源声和干扰,特别是使用很长的连 线时,建议采用平衡连接。非平衡连接适用于短 连线。信号的源阻抗应低于 600 欧姆。

如果 数据埠 正在使用,不要连线到接线盒。

平衡输入:将线剥去 ¼ 英寸 (6 mm),连接到连接器 上,如图所示。拧紧螺丝。

非平衡输入:将线剥去 ¼ 英寸,连接到连接器

上,如图所示。中间的针必须连接到屏蔽针上, 如图所示。拧紧螺丝。

模式开关设置 (适用于 所有通道对)

立体声模式 开关 4

56 7 都设置为向下 的位置。

并行模式 开关 45

6设置为向上的位置。 开关 7 设置为向下的位 置。

桥式模式 - 开关 456

7

都设置为向上的位置。

每一通道都有单独的 LF

滤波器开关和频率选择 开关。

第一通道使用开关 2 3。第二通道使用开关 8

9

开关 3 8 LF 滤波器置 为开。

开关 2 9 用于选择 50Hz

75 Hz

CH

37

Page 37
Image 37
QSC Audio CX108V user manual 选择立体声、并行或桥式模式, 设置低频滤波器, 接线盒输入, 75 Hz

CX108V specifications

The QSC Audio CX108V is a powerful and versatile amplifier designed for commercial audio applications, particularly in environments such as retail spaces, restaurants, and other venues where high-quality sound is essential. Known for its reliability and performance, the CX108V has become a preferred choice for integrators and sound professionals alike.

One of the main features of the CX108V is its ability to deliver high power output while maintaining exceptional audio quality. With a power rating of 1000 watts at 4 ohms, the amplifier is capable of driving a wide range of loudspeakers with ease. Its efficient Class D amplifier design ensures low heat generation and prolonged operational life, making it a perfect fit for installations that require continuous use.

Another notable characteristic of the CX108V is its lightweight and compact design, which simplifies the installation process. Weighing in at just 7.6 kg (16.8 lbs), the amplifier can be easily mounted in various locations, whether on a rack, shelf, or wall. This portability does not come at the expense of durability, as the chassis is built from robust materials to withstand the rigors of a commercial environment.

The CX108V is equipped with a range of input options, including balanced XLR and TRS connectors, allowing for easy integration with various audio sources. Additionally, the amplifier features a precision feedback circuitry that enhances its overall performance, ensuring consistent audio delivery even at high volumes. Built-in protections such as over-temperature and short-circuit protection ensure reliable operation, minimizing downtime in critical environments.

QSC’s advanced DSP technology further enhances the capabilities of the CX108V. The amplifier includes programmable signal processing features that allow for tailored audio management, including EQ settings, crossover adjustments, and delay configurations. This flexibility makes it suitable for a variety of installation scenarios, enabling sound professionals to fine-tune the audio experience to meet specific needs.

In summary, the QSC Audio CX108V is a remarkable amplifier that combines power, efficiency, and intelligibility. Its lightweight design, robust protection features, and advanced DSP capabilities make it a go-to choice for audio professionals seeking high-performance solutions for commercial audio applications. With the CX108V, QSC Audio continues its tradition of delivering products that not only meet but exceed expectations in sound quality and reliability.