BAT VK 5i and tubes, how to chosse?



I live in a distant Brazilian city, I have one BAT VK 5i with sovtek 6922 tubes. I would like to know about 6DJ8 amperex bugleboy logo, made in Holland( $105/pair), and 6DJ8 Amperex Orange World Logo Made in Holland($30/one)
Do you think they match with my BAT? . Some people
said to use sovtek 6H23 in place of sovtek 6922, even so are cheaper than the 6DJ8 amperex, but I think
that valley to pay for better quality. Which the best choice? is there any DANGER to BAT with 6DJ8?
George
georgemg
I'd post this is AudioAsylum.com under amps/pre section. Victor, one of the BAT owners, and the designer, usually replies.

I have Amperex 7308's Orange globe logo in my BAT vkp10se phono stage. Sounds wonderful...replaced the stock sovtek 6922's...
George,

I have found that the BAT preamps don't care for the 6DJ8s. I have tried the Bugle Boys and they were fine for about 10 minutes and then things got noisy. If your determined to roll some different tubes into the 5i I would recommend a 7308.
You may think I am joking here, but I am not. I have had good luck with Sylvania/Phillips JAN 6922 which you can buy from PartsExpress.com for $7 each.