INV 2185 The Peavey 112TLS is a pair of 12-inch two-way passive speakers. Details about these speakers: They feature premium dual bi-morph compression drivers with 1.5-inch diaphragms. The model number for these speakers is NK113971. Specifications: Woofer: 12-inch heavy-duty woofer. Tweeter: RX 14 titanium diaphragm dynamic compression driver. Coverage: The speakers have a 60 by 40 degree constant-directivity horn.