Since I have two Celestion Greenbacks lying around I'm thinking about making a 2 x 12 speaker cabinet mainly for recording purposes.
My idea is to make a closed and open back enclosure: a mono cab, two speakers, one half open, one half closed. This way I'm hoping to have the best of both worlds and the instant flexibility in a recording setup. (I don't have the exact measurements of the proposed cab yet, still searching/orientating)
I can't seem to find any information about this particular idea.
Maybe because it would be foolish/counterproductive?
Exactly what is your plan? Will the closed portion be totally closed? If so, your closed portion will really act more like a small closed 1x12. It'll truly be like two separate 1x12s stuck together (an open and closed)... for better or for worse. In that case you'd probably be better off with two actual 1x12s.
If you were planning on just merely keeping the rear panel solid behind the "closed" speaker but not actually fully sealing it closed, then both speakers will simply respond like an open back.
In my opinion, while it might seem like a cool idea on paper, I don't know if it's worth building, either way. If you want the best of both worlds out of a 2x12, just make two back panels... one with an opening and one that is solid... swap on whichever one sounds better in a given situation.
I have a nice closed back 2x12 and I made an "accessory" open back rear panel for it... and I swap on whichever back panel depending on what I'm going for. In that way, the cabinet will respond like a true 2x12 whether open or closed, and not like a 1x12.
The plan is indeed a double 1 x 12: One closed portion and one open wired together (probably parallel).
This way I'm hoping to have the solid low end from the closed part and the smoother mids/highs from the open one.
But like stated earlier, I've never seen nor heard a set up like that.
Maybe I should just try it?
I also like the idea of a removable back, although that way you don't have both at the same time.
Mesa boogie used to (or may still) have a vertical 2x12 with the bottom closed and the top open if u need to see an example. I agree it's probably better to go with an open cab with a removable back. Avatar makes a cab like this that is probably cheaper than you could build.