Balanced Audio Technology MK-30 tubes. Alternative to Sovtek 6922

First off I’d give BAT support a call. I’ve had several BAT amps. all are balanced and spurrious noises are routinely absent. I rolled tubes in an older vk5 pre and in a vk60. noise was never a consideration while interjecting different tubes. consequently I feel the issue is elsewhere…. more than likely.

however the tube replacement options are immense. 6DJ8, 6922, OR 7308 ARE PLUG AND PLAY REPLACEMENTS.

to verify the issue is in fact tube related merely buy any actually ‘new’ ones regardless brand and plug ‘em in. I should think BAT offers something here too, but finding something kshould not be difficult.

BAT amps are all self biasing so even if the what ever tubes are not new for example, things ought to reveal if a tube issue or not.

and I’d call BAT about this anyhow. hopefully it is merely a poor tube.

the flip side of the coin does seem to obligate the seller to explain their notice of ‘clean and clear’ IMO. Very good luck to you..

I will say on the subject of Gold Lion 6922's I retubed my preamp with them and found them to be too bright. I love the Gold Lion KT77 but with the 6922's I ended up taking one pair out.  My preamp uses 6 tubes, I rolled in a pair of Matsushita 7dj8's in first position and ran with that and 4 Gold Lions and it was perfect. As always YMMV.

@rlb61  you are correct my bad. VK-30

Thanks @jond 

I have decided to gamble and order new tubes, and hope that fixes it. And I might as well get tubes I want to keep. I'll probably go with the Gold Lions "kevins stash" and cryo. If they are too bright, I will follow your suggestion.

But "too bright" may be fine for my aging ears...  :)

Also, I have an email in to BAT, waiting to hear back. I may just call them tomorrow.

Good luck Brad I hope the new tubes work out well for you!