Can you link me to the reference?
Yea, your design sounds similar. I started with a jbl 15inch bass driver, but I just couldn't find a way of making it visually acceptable for my living room.
My design will have an 11 inch front baffle, as this is the acceptable limit before it looks overbearing.
I've given up on the other options of using a pair of 10m's or equivalent as the cost seamed excessive for no real gain, a bass driver in the side of the cab is a no go as the only ones good enough to mix with the 10m's are ae drivers and again increase the costs and complexity.
The 10m was chosen as it measures the best out of the 10 inch drivers, and will give me enough range to not excite any harmonics in the mid, regardless of the crossover point used.
But it's xmax limited, so as a sub will handle below 70 hz, the TL design seams to fit the need- keeping excursion down right where I need it and generally reducing distortion further anyway.
The other thing I need to find out is how to measure the tube length when folded. Is it the length down the center of the tube or the shortest route or what. Haven't found an answer to this yet.