The MODEL 500 incorporates stereo Line-Level inputs and outputs that permit the amplifier to be connected between a preamplifier and amplifier without the need for Y-connectors.

型号500包含了立体声线性电平输入和输出，这能够使扩音器在前置扩音器与扩音器间连接，不需要Y型连接器。

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The unit switches unbalanced stereo audio to the selected preview and program outputs.

它切换非平衡立体声音频到可选的预览和节目输出。

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This determines the position of the signal within the stereo mix image or may be used to route (send) the signal to particular GROUP outputs as selected by the ROUTING SWITCHES (see below).

用于确定立体声混音中的信号位置，或用于当使用路由开关路由（发送）信号到特定编组输出时确定信号位置（见下文）。

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The back of the S4 is pretty much what you'd expect: a couple of spare sets of RCA stereo inputs, a mic input, TRS and RCA outputs, a MIDI passthrough, and a footswitch jack if you're into that sort of thing.

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The codec subsystem includes stereo class D speaker drivers, stereo class G headphone drivers, an earpiece driver, and two line outputs.

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