I want to upgrade the two channel sound of my modest system consisting of Infinity speakers, Velodyne CT120 sub and a Denon 3801. I am only looking for an improvement in two channel sound as music is my main interest. I am thinking of going two ways. 1) Buy a used B&K ST 140 (I like the smooth B&K sound) for about $250 and hook up the main L/R channels to it or.. 2) Buy a tube preamp like the Antique Sound 2004 model for about $299 and integrate that with my HT setup for two channel sound. Which setup would yield better 2 channel sound in your opinion? If the answer is 2) then that brings up the next question, i.e., whats the best way to integrate the ASL 2004 preamp with my HT so I dont have to adjust the volume everytime I switch between 2 channel and HT? Thanks guys.