Hi guys. ive got a 1960a cab and have replaced the speakers with 2 celestion g12h30 8ohms and ive got another 2 greenback 55hz 8 ohms. my question is can i wire the cab in such a way that if i wanted i could use it as a traditional 4x12 with both the greenbacks and hertiage speakers working as a 4x12 but then also with option to plug in and only use the greenback pair or the heritage pair as a 2x12?? i realised i would probablly have to add jack plates or something but any help would be greatly appreicated. Thanks, Kosta.