This is a NEW FOSTER N27 or B50001 DRIVER;
MESSAGE with any questions!!!
We have most models by many pro Speaker manufacturers
in stock or can get them for you for dealer cost.
SIZE: 1 3/8" Screw on
X-OVER: 2.5kHz or Higher
Size: 3 1/2" diameter
Weight: 1.0lbs, 500 g