Hey Bigload,
First, I'm an AVA/SALK guy. Had the HT3's for 3 years and the AVA gear a little longer. I use a Sony CHANGER to my Ultra DAC. It is the 3rd Sony player I've used with this system. (A DVP, Blu-Ray, and a DVP changer) All 3 Sony players sound different. Not huge differences, but easily audible. While I did at one time believe transports are neutral, they are not. Much of the qaulity of Franks work has to do with his work on the various power supplies within the box. CDP's have power supplies... One day I hope to eliminate the player in my set. Not trying to start a debate.
Henry, "OINP", another SALK/AVA'er is not a ranting lush. He is a practical guy with an open mind. He heard and learned and improved his already outstanding system. I love my set, I still get blown away by it, I don't sit around listening to it and think about what I am missing. AND I'm using a changer!
If you're into Hi-Rez, Sacd's, or DVD-A's, you might want to check out Franks Oppo with the HDMI de-imbedder he used at RMAF.
BTW, my brother has the HT2TL's, mighty fine speaks.

That's a very nice set you already have and will only improve with the addition of the Vision DAC and Marantz.
Happy Listening
