Tubes for a Shanling CDT-100


I purchased a new Shanling CDT-100 about 7 years ago, used it for about 6 months then moved. It has been in storage ever since, I will be buying a house soon and looking forward to setting up my equipment. I never liked the sound of the original tubes and am hoping some of you Audiophiles can recommend what you think would sound better then the originals.
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For readers that do not know, the player comes with 4 6N3 tubes; 2 for the headphone amp and 2 for the CD player.

I replaced the 2 stock 6N3s for the player side with Western Electric 396As.

Clearly better than the stock tubes.