Diaphragm Compatible For B & C DE 12, TBox 12/300, Nexo-ps8, or GEOS 8 - 8 Ohm
Specs:
Overall Diaphragm Diameter: 3 3/8" (85.7mm)
Voice Coil Diameter: 1 7/16" (36.4mm)
Nominal Impedance: 8 ohms
USA shipping.