I use an Olson acoustic (SJ cutaway cedar top model from 1992). In my opinion, James Olson makes the best acoustic guitars on the planet!! The tone is so warm!! James had stopped accepting orders for a few years to catch up, and he is prepping to open up again.
olsonguitars.com

I also have a Duncan acoustic with a spruce top, which is a wonderful, local B.C. guitar.
duncanguitars.com

My preamp is a Pendulum preamp, with a 4 band parametric EQ which sounds great. Years ago, when I got my Olson, I asked Jim what James Taylor did live with his Olson acoustic guitar. At that point, James was using Pendulum. I figured if Pendulum was good enough for James it would be good enough for me!! Many times, I will have people come up to me and say, "your guitar sounds so natural...what do you use for a preamp?" Actually, the key is mainly in the guitar itself, but a good preamp helps for live events. I never use any effects like chorus or anything on my acoustic; in that sense I am a "purist." I just like real acoustic instruments and the warmth of wood!
pendulumaudio.com