music max
New Head-Fier
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- Jan 2, 2013
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I appreciate the suggestion. I'll give that a go and see if that works.
Can someone recommend a relatively affordable input tube for the crack? I have a Tung Sol 5998 in the power section. Thanks
The usual answer is the RCA clear-tops - good detail and a very reasonable price.
Can someone recommend a relatively affordable input tube for the crack? I have a Tung Sol 5998 in the power section. Thanks
The clear top is a very nice tube with the darker sounding hd650 but if are using cans like the hd800 in your avatar or Beyerdynamics you may find the clear tops bright top end is to much of good thing giving to much treble emphasis. I would suggest having a look for a Tung-sol 12au7 JTL or Black glass (1950's) for me they have a nicer midrange with the top end a little dialled back compared to the rca clear top meaning things don't sound overly bright as they can do with the clear top and these phones. They are reasonably priced and easy enough to find.
The clear top is a really spectacular tube, delicate details with amazing timbre and extension. Definitely a winner with the HD650. Also great with the HD600, but only for well-produced music.
If you want something a little warmer, you could try to find a made-in-Holland Amperex tube for a decent price (good luck)--warm and sweet with a natural tone, more forgiving than the clear top but still not super forgiving.
If you are not adverse to a bit of enlarging the hole and rewiring in a loctal or octal socket, 7N7's are dirt cheap but the loctal equivalent to very pricey 6SN7's. I tried darn near every variety of AU7's available with my 5998. In every case, the 6SN7/7N7 was substantially better. There are some adapters available from the auction site if you want to try first.
Cheers,
Geary
My issue is definitely not coming from the tube. If someone is in the central florida area please let me know as I am willing to pay a fee to have mine checked.