Is there a fully balanced 6sn7 preamp?

Interesting question. I'm using a Blue Circle BC21 which uses two 6SN7s, but this is in unbalanced configuration.

What amp were you thinking of mating it to?

The Atma-Sphere MP-1 is also a balanced unit that uses 6SN7 tubes for the linestage.

If you are considering the Atma-Sphere MP-3, there is a used unit on eBay right now.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=14974&item=3095624663&rd=1&ssPageName=WDVW

Gunbei,

As far as amps go, I'm not sure yet. I just like the sound of the 6sn7, and I'd like to hear what it could do in a fully balanced configuration.

Do you prefer the bc 21 with 6sn7s to the 6299 equipped bc 21.1, or are you thinking about upgrading?

the new Cary slp -05 is balanced with 6 6sn7 !