If you haven't made your purchase decision yet, please allow me to STRONGLY recommend the Marshal AS100D .  I have played though several (8 or 10) different acoustic amps and even purchase a second-hand Traynor - Yorkville 100w amp.  When I finally played through the Marshall, it was a world of difference.  My Traynor-Yorkville sounds very good, let me make that clear, but the Marshall.... well their reputation is WELL-deserved.  It sounds more full, rich, whatever....  just PLAY one.  I was able to ge mine foe 20% off of the $699.99 price tag most places have them marked.