Just as title explains, do any of you know if these exist? I'd say this is more a little bit of market research at the moment. I know some of you guys are using rack gear at home, and nowhere else, with your Axe-FX's and poweramps and whatnot. So, do you guys think maybe a 1x12 cabinet, with a built in 4u rack would be a viable option or a seller at all? I'm looking for new ideas and things that have never been done before, (also, I know alot of people are probably thinking 4u isn't enough, but I'm looking at just an AFX and tube poweramp as a guide).
There are many flight-cases available, offering 4U for rack stuff and below the space for a 112 or 212.
Flight cases and racks are all about flexibility, and you wouldnt have that with the fixed 4U+112...to be competitive you would have to offer many different solutions, and than it gets to expensive.
Besdies that - it, more or less, does exist - you can always buy empty combo housings from various dealers, most of them have a 2U space for the amp.