10 Pack of Square Piezo Tweeter (rear/flush mount) from Unbranded 85mm x 85mm, Rear Mount, Baffle Cutout 73mm diameter, originally manufactured by CTS (formerly Motorola)
Amazon.com: Replacement for Motorola KSN1188A Piezo Horn Driver : Electronics
CTS / Motorola KSN-1001 Recessed Mount Piezo Electric Super Horn Tweeter</font>
Motorola Piezo Tweeters | eBay
CTS Tweeters, High Frequency Tweeters and Horns- CTS formerly Motorola for good quality and cost effective systems. CTS speaker upgrades. CTS tweeters here.
HW Audio:. Motorola Style Tweeter Piezo Square
Replacement Motorola Piezo Horn | Reverb
Vintage Original Motorola Piezo Tweeter KSN1001A | #1824482947
CTS / Motorola Piezo Electric Super Horn Tweeters</font>
Pair of Motorola Piezo Tweeters | eBay
CTS Tweeters, High Frequency Tweeters and Horns- CTS formerly Motorola for good quality and cost effective systems. CTS speaker upgrades. CTS tweeters here.