Taylor guitars often get a bad rap for bass response. Frankly, it comes from people who play X14's and from people who play light gauge strings on a X10 or X15. Larger bodied Taylor guitars are designed for mediums and the action, even with 13's, is generally excellent, making them play effortlessly. The bass response on Taylor guitars set up the way they should be and with the proper gauge of string should be excellent and very balanced.
^^ Very true. I have a Grand Symphony (X16), and even strung with .12s, it has plenty of bass.