线索，水平，声像，独奏和静音控制。
该8200a提供了一个机架空间，与每间均设有液位控制，声像和两个辅助发送通道每通道8个输入。
The 8200a provides 8 inputs in one rack space with each channel featuring a level control, panner and two Aux Sends per channel.
音量限制：背景音乐由展览会组织者安排，展出者的声像设备的音量必须控制在不影响周围展出者的范围内。
Volume Limit: Background music, arranged by the exhibition organizers, exhibitors, audio-visual equipment, the volume must be controlled without affecting the surrounding exhibitors range.
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