Build: This is the easiest build I've done yet. It helps that the 8" wide cab does not require internal bracing other than at the driver baffle. I only used a jigsaw, circular saw, and basic measuring tools to build this cab. I also used 1 tube of PL, a pint of Duratex, a pint of red paint for the mouth, 8 steel corner protectors, 2 small rigid casters, and one 4x8 sheet of 1/2" MDF. Yes, I used MDF and it turned out great. I used MDF for a few reasons. 1) It's inexpensive, 2) it doesn't warp, 3) it doesn't split when cutting with the saw, 4) it was easiest to acquire, and 5) I didn't require the durability of Baltic Birch since the sub is staying in either my dorm room or car.
Performance: It's about the equivalent of the Autotuba's performance. I didn't build it as big as possible, nor as small as possible. It sounds good in the dorm room and is located about 3' away from the listening position. I was surprised at the low extension of the TrT, but it's obvious that this design greatly benefits from the cabin gain of a vehicle, which is its intended environment anyway. It rapidly runs out of steam outdoors or in an open garage. I will say I am quite disappointed in the MCM 8" driver, which rapidly hits its excursion limits in the low frequencies, and I will eventually upgrade to a GTO804 or Infinity 860W. I'm overpowering it with a SD300 300w plate amp right now in anticipation of this eventual upgrade.
Overall I'm very happy with it, and it's perfect for my dorm room, if a bit overkill. Anything over 3v draws negative attention from neighbors.
Pics:
Before attaching the final side (yes, that is a CNC router in the background. College is awesome
)
Finished:
