I've been playing acoustic folk and blues lately - no amplification whatsoever - in a large room with about 20 other musicians taking turns. I have a Martin electro acoustic with cutaway which is great when plugged in but has no volume acoustically. I also have a Taylor but it has the same problem. I tend to play lead fills rather than strum chords or I will play fingerstyle to accompany songs I am singing. I have a couple of resonators and two small acoustic amplifiers - a Fishman Loudbox and a Yamaha battery amp but nobody else uses amplification and I am reluctant to go down that route. Question, what acoustic guitars should I be looking at to get more volume?