AtlasIED HX31-345 3 inch Speaker with 45 Ohm Voice Coil. Magnet Weight 1.47 oz

The AtlasIED HX31-345 is a 3" replacement driver with a 45 ohm voice coil, the service part for AtlasIED paging and intercom assemblies built around a high-impedance element rather than an 8 ohm one.

The 45 ohm coil is what matters here: drop an 8 ohm driver into the same hole and the line loading is wrong. Magnet weight is 1.47 oz. Warranty is 60 months from date of purchase.