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。
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。
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.
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