Cardas Caps on unused digital jacks?


I have used them on all of my unused analog RCA jacks. I have one pair of unused XLR jacks that I plan to buy Cardas Caps to cover.
But what about the digital jacks. I have not used caps on any of them. Should I be covering them too? How about the unused "video" jacks (all kinds) on the digital transport. It is the EAD t-7000 so it also plays LD's, which I don't do. The EAD drives my D to A via AT&T glass.

Opinions are appreciated.

Richard
drrdiamond
If it's all or mostly about keeping the jacks clean...why not use those soft-plastic thread-protector tips every hardware store sells for about 8¢ apiece?
Cardas caps are to prevent EMI/RFI intereference to enter the chassis thought the so called "darn little holes" in the middle of the RCA jacks. I used a total of 46 in my system and some equippment might not sound as good if you use some, and of cause some do. If I have to use them to cover ALL the RCAs I will br broke... do some blnd test to see if they help, then use... Also, they can be also as long as it's a RCA jack.

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