1″ voice coil with titanium dome.

8 ohms. 

It fits for the drivers :

2412, 2412H, 2412H-8, 2412-8, 2412-1, 2412H-1, 2412H-1-8, 2412-1-8

and  the following list of some of the cabinet model

 

EON Series: EON10, EONPOWER10, EONPOWER10-G2, EON1500 

JRX 100 Series: JRX112M, JRX112Mi, JRX115M, JRX115Mi, JRX125

MPro Series: MP212, MP215, MP225, MP410

TR Series: TR105, TR125, TR126, TR225

SoundFactor Series: SF12M, SF12Mi, SF15M, SF15Mi, SF25