Looking for unloaded extension cabs.. Came across Sourmash, Seismic, Avatar, one or two others. Avatar is a hair too spendy, Seismic from what I found gets bad reviews, and Sourmash doesn't make a 1x12 or 1x10 according to their site. My budget is up to $200. What would you recommend? A Line 6 DT25 will be sitting on top of this, so it has to be 21" wide.