Sony SCD XA5400ES tube rolling?


Just got my player back from Modwright,fully modded with the ultimate upgrade. Wow! incredible difference over the stock player even cold out of the box.

Now the question, anyone have experiences with tube rolling with this player? The stock Russian Tung Sol 6SN7s are supposedly fine, but I decided to order some KEN RAD WWII military (VT231)tubes and see if there is a big difference in sound. In the mean time, awaiting their arrival... comments are welcome.
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Modding the work of a modder seems a bit crazy to me, but perhaps it explains the need to have a fine player modded in the first place. It's really a tinker toy.

db
Modding the work of a modder seems a bit crazy to me 07-26-11: Dbphd

One of the most intelligent posts ever. When does the pursuit of perfect sound all end folks?
you guys who are not willing to do a little more work to optimize gear, go spend $15k on a digital player where they do that work for you. your choice.

i just wrote up the MW piece on positive feedback, and i specifically address user preferences like this. for those willing to 'mod the modder', it pays off, and gets you further, for less $$, than the alternative.
If you read the posts carefully you will see that the Mullards and Sophias were recommended by Dan Wright. This is not a case of second guessing the modder. It is a case of taking his recommendation on cost no object tubes. I am thoroughly impressed by his work and because of that, would willingly accept his advice on tubes, cables, power treatment, feet, or anything else that he wants to comment on.
i have been trying to find a reasonably priced pair of brimar 6sn7. i use some older brimar 12at7 and 12au7, so i would like to try brimar 67n7, circa the 50's.