Piezo KSN1177, KSN-1177 6.375” x 3.75” Horn & Dual Driver Tweeter

Piezo KSN1177 Piezo Horn & Dual Driver Tweeter 6.375” x 3.75”, (requires 5" x 2.25" hole cutout). KSN 1177, KSN-1177, GT1177, GT 1177, GT-1177 GT1177. 75w RMS / 150w Peak. 3k-18khz.

Many manufacturers such as Motorola and CTS have used the Piezo horn and driver over the years. Here's a partial list:
Motorola KSN-1177, 1177
PEAVEY 115TLS
STAGEWORKS
VEGA V122MKII, V122 MKII, V122 MK-II
VEGA V-122, V 122, V112NK2
VEGA CV122
YAMAHA
And Many Many More.