Hi Allan, MidChuck's right about the 12-fret slot-head guitars. They have a better balance of sound than the 14-fret dreadnaughts. I've been partial to them for years. Originally, the Ditson Company from New York built the prototypes for Martin in 1928. They were called the D1 and D2, respectively. The D1 was made of mahoghany, the D2 of rosewood. They became the D18 and D28. The luthier's from Ditson decided the 12 fret model had better tone, but Martin decided to release a 14 fret model as orchestral players of the day complained about needing to have easier access to the C scale at the 12-14th frets. The 'slotheads' were introduced in '33 with the 14 fretter's in '34. Ok, back to your question...sorry. What I've done to get a 'big' acoustic guitar sound is this: Get the best condenser mics available and use at least three. One near the upper bout, one near the lower and one about 8-10 feet away. Record on 3 separate channels. When mixing pan them like this: upper bout/wide left, lower bout/wide right, room mic/dead ctr. Tweak the bass response on the room mic until it overloads slightly then roll off a little. Can't overstress the importance of the room mic. You will get a real big sound. That coupled with a big dreadnaught should do the trick. The guitars I've used, woodwise are made of walnut and red cedar. Lowden makes several. Rosewood has tons of overtones and is a little tricky to mic and mahoghany can be a little on the 'thin' side, but is cleaner. Walnut w/12 frets and a cedar top is what I prefer. Oh yeah, if possible a little compression can be good if available and a touch of reverb. Ok, hope that's helpful.