Features & Setup - QSC DCA1222 User Manual

Minimum bridge mono load on DCA1644 is 8 ohms.
DCA1644 上的最小桥式单声负载为 8 欧姆。
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FEATURES & SETUP
Bridge Mono mode
This mode combines the full power capabilities of both channels into a single
speaker system. The amplifi er internally re-confi gures so that both channels
operate as a unit. This delivers double the output voltage, resulting in four
times the peak power and three times the sustained power into a single 8- or
4-ohm speaker load. The Bridge Mono mode section on page 11 describes the
special speaker connection used.
Examples:
• Driving a single 8-ohm speaker with the combined 4-ohm power of two
channels.
• Driving a single 4-ohm speaker with the combined 2-ohm power of both
channels.
Precautions:
• Bridge Mono mode makes it possible to drive thousands of watts into a
single speaker. AC current consumption will usually be higher. Avoid exces-
sive signal level, and make sure the wiring and speaker can handle the
power.
• If the load is less than 4 ohms, or prolonged overloads occur, the amplifi er
will probably mute for several seconds during peaks.
• Do not use 2-ohm loads.
SEE THE ADDITIONAL BRIDGE MONO MODE WARNINGS ON PAGE 11.
功能与设置
桥式单声模式
此模式将两个声道的完整功率功能整合到一个扬声器系统中。放
大器内部重新配置，这样两个声道便作为一个单元操作。此操作
可使输出电压加倍，导致单个 8 或 4 欧姆扬声器负载中功率峰
值增加四倍，稳定功率增加三倍。第 11 页中的桥式单声模式部
分介绍了所使用的特殊扬声器连接。
示例：
• 使用两个声道的合并 4 欧姆功率驱动单个 8 欧姆扬声器。
• 使用两个声道的 2 欧姆功率合并驱动一个 4 欧姆扬声器。
注意事项：
• 您可以通过桥式单声模式将成千上万瓦特功率驱动到一个扬
声器中。AC 电流消耗通常会更高。避免过度信号电平，并确
保接线和扬声器能在该功率下正常工作。
• 如果负载小于 4 欧姆，或出现长期超载的情况，则放大器将
可能在出现峰值时静音几秒钟。
• 请勿使用 2 欧姆负载。
请参见第 11 页上的其他桥式单声模式注意事项。