DS1320-W-4 Active Emitter Loudspeaker 4-Pack exl Cables WhiteThe Qt Active Emitter, Fusion Edition (DS1320) is a point source Emitter (loudspeaker) capable of both sound masking and simultaneous reproduction of clear audio sources such as paging signals. The Qt Active Emitter provides higher SPL and a broader frequency range than previous direct field Emitter offerings using a 1. 25 diameter driver. Patented direct field technology ensures both uniform, comfortable sound masking as well as clear, articulate