This Is Brand NEW ! LASE Compatible Aftermarket Replacement Diaphragm for Yamaha JAY68625, NBF00001 For S112, S112H Series Please Look And Make Sure The Diaphragm You Are Ordering Matches The Pictures Above & The Specs Below Specifications : Voice Coil diameter: 1" Voice Coil Flange OD: ~1-3/4" Overall Length: 2.765" Overall width of terminals: 0.925" Impedance: 8 Ohms Weight: 0.04 Lbs