Before revision: AudioPressBox APB-224 C A mult box is "a metal box with multiple outputs of a single audio source (one microphoneconnected to twenty jacks so that twenty people can record that microphone). "
After revision: AudioPressBox APB-224 C A mult box is device that allows a a single audio source (one microphoneconnected to twenty jacks so that twenty people can record that microphone). "