With 9 vertically arrayed 8cm speaker units and a 90° horizontal x 0° vertical directivity control, the TOA TZ-S60W Slim Array Speaker produces high clarity sound. This public address system allows it to project clear sound even in reverberant environments. To increase sound transmission distance and vertical coverage area, two TZ-S60W can be stacked. A rotary switch offers both low and high impedance options for installation versatility.