I actually own an amp that would be suitable for that guitar; your comment reminded me. This High Cliff Sound Board amp uses a spruce soundboard with a sound hole cutout connected to a transducer instead of a traditional speaker.
Here's a photo from the Net:
It does a great job with acoustic instruments and is seldom seen. Solid state, though.
You never see them around, mainly because they were real expensive and weighed as much as a Twin Reverb. But with the 10-band EQ set right, it is a super-effective amp for an acoustic guitar.
I could use that thing and set it to where it didn't color the sound of the guitar at all; it just sounded like the biggest Martin acoustic in the world on stage.
I was lucky enough to get it for peanuts from a friend who owned a music store and had it sitting unused as a demo unit for three years or so. A luthier named Bruce Petros designed it.
It's a one-trick pony but when I was just playing acoustic rhythm guitar in bands, I used it a lot.