commonwealth

Hi, guys! I'm going through something kinda hard: I got a 2x12 cabinet with just one celestion V30 and I'm thinking about buying another one (but not another v30). I'm between an used Mesa Black Shadow and a new Eminence Commonwealth. Have you guys tried some of these mixes? Some tip or any...

I was just wondering if anybody has ever tried these out? They look like they could be interesting with the extended low range. http://www.eminence.com/guitar_speaker_detail.asp?model=COMMONWEALTH12&speaker_size=12&SUB_CAT_ID=4