I recently tried the newest version of Mesa's Powerhouse 1X15 and I think it is what I want. I did some searching but am still confused about these. I know there were the Diesel and Roadredy designs and then both were redisigned to the Powerhouse and newer Roadready designs. Since then it seems that there was another change to the new "deep" Powerhouse, if I understand correctly. Question is, what if any are the differences in the Powerhouse 1X15 cabs? Meaning when the Powerhouse series first came out to What is sold now. I know most will say the older Diesel and Roadready cabs were better. I tried them and they sound good but I think that I prefer the Powerhouse. Somebody has to know... Thanks!