I voted maybe... I have been trying to build a subwoofer cabinet but keep running into issues... It all boils down to if you have or have access to the right tools... Here are the numerous issues I have gotten into (I am trying to build two cabinets):
1. I had my MDF pre-cut at the local hardware store, only to find out their saw was offset... Boards were 1/8" off on one end to the other.
2. Making circle cuts is nigh impossible without a router
3. the second cabinet I built had warped MDF, so the box would not come out square...
4. Unless you have a table saw, it is difficult to cut the MDF perfectly to the right dimensions
5. T-Nuts are a pain when they spin in the baffle and you can't get the bolts out.
6. staining veneers is be difficult with certain woods (like cherry and maple), they tend to come out blotchy even when pre-conditioning them (walnut is the easiest).
7. painting MDF is a real pain. You have to use a filling primer like KILZ or Zinsser.
I ended up buying a LOT of power tools... A router, jigsaw, Jasper circle jig, rip fence for a circular saw, orbital sander. If you nevenr had the experience in woodwork, it can be frustrating. Once you build the cabinet, you kind of pick up some useful tricks to help you avoid issues down the road.
If it's not a BIG screen, it's not a theater...