Sonance Blaze Audio CBL523 Passive Loudspeaker On-Wall | WhiteThe Sonance Blaze Audio CBL523 is an ultra compact passive loudspeaker engineered for on wall distributed audio in commercial venues where visual footprint and acoustic accuracy are both critical. The 20. 5 x 35 cm (8 x 14 in) enclosure houses dual 5 inch low frequency drivers paired with a vertical three element constant directivity array of 2 inch high frequency drivers, producing a controlled 160 degree horizontal by 55 degree vertical coverage