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