American made part# edw8dfj form 447-02 sound diffuser for 8 speaker baffles model d8w reduces “hot spots” under baffles by diffusing sound. improves coverage of speakers, and can reduce number of speakers required. helps sound quality in high ceiling, hard surface applications such as shopping malls. no glare surface blends with white ceiling tiles, or can be painted. made of ceiling white, high-impact, uv stabilized polystyrene. no metallic resonance. easily assembled to model fj8w, ls8w or rf8w and other baffles with 8 speaker mounting holes (7-5/8 dia.). diffuser and speaker are assembled to the baffle at the same time with four supplied threadcutting screw architect’s engineer’s specifications the sound diffuser shall be fourjay model d8w with outside dimensions of 8-3/4 diameter by 1-3/8 depth. it shall have four mounting posts on 7-5/8 diameter for easy assembly to fourjay baffle models fj8w or ls8w and other baffles with 8 speaker mounting holes of 7-5/8 diameter. it shall be constructed of high-impact, uv stabilized polystyrene thermoplastic. the sound diffuser shall be used where “hot spots” or reverberation is a problem. four #8 x 5 /8 type 25 phillips pan head screws shall be furnished to securely fasten diffuser, speaker and baffle together as an assembly