Hi. I was wondering if it is possible to power an Ampeg SVT-410 or an Ampeg SVT-115 cab with an Ampeg BA-115 combo. If so, would it be possible to stack the combo on top of either cab where the little indentions for a head are? Please reply as I am looking into getting a cab for my combo, because I am trying to make a major upgrade in my equipment so I can help to get my band more possibilities to play gigs. Thanx.