Tweaks for a Musical Fidelity X10-D tube buffer?


I'm wanting to experiment with the video section of my set up. I'm currently using a Sony 7700 dvd with a Cal Sigma II with 24/96 capability and a single Mullard nos 12ax7. I also have on hand a Musical Fidelity X10-D tube buffer that I want to compare to the Sigma dac. Does anyone have experience with the X10-D and can recommend some tweaks/tubes for it? I remember reading that many people have upgraded the ac wall wart for it and using a ec85 tube instead of the supplied ecc88 but don't know where to purchuse a upgraded wall wart and upgraded tubes. Thanks in advance for any suggestions!
128x128bradz
You'd be MUCH better off selling the 7700, Sigma II, and the X10-D. Then buy a higher quality one box unit.
What dvd player can you recommend? I'm using the sony for video playback only as I'm also using a Cary303/100 cdp for audio.
I'd suggest the latest and greatest from Pioneer:
http://www.pioneerelectronics.com/Pioneer/CDA/HomeProducts/HomeProductDetails/0,1422,2092,00.html

If you sell all of the aforementioned gear (including the Cary), and if you shop carefully, this is doable.
I upgraded my sony 7700 to the sony DVP-NS999ES and it makes a big difference, particularly in the added bass and clarity in the surround channels. A big improvement! And you get an SACD player as well.