Dan, I had a similar question. I have the M60's VP150,QS'8's end an EP175. They are all 2 weeks new now and while the sub was ok for HT, it left me uninsired when it came to music. So I ordered an Hsu VTF-2 which is the exact same price as the EP-175. It arrived Thurday night and I can only say that there is no comparison! The VTF-2 makes such a difference in the mucic and truly enhances the M60Ti performance more than words can express! Do yourself a big favor and get the VTF-2 first, you'll be glad you did.
