I ordered a pair, and I have sent back the Mullard 6080 which did not match my setup, and as you mentioned, I don't believe other driver tubes would make it all sing perfectly. One has to try things out. I like this hobby :-)

They are indeed beautiful!

Jesus! Maybe they are coming a bit cheaper now: https://www.ebay.com/itm/Tung-Sol-JAN-5998-Matched-Vintage-Military-Tube-Pair-Domino-Plts-NOS-Test-112/202319021996?hash=item2f1b2747ac:g:dF4AAOSwuHJbAxLM It's the one we are dealing with, right?

When you listen to the 5998 + Sylvania with your HD800, how would you describe the sound compared with the stock tubes (if you have the same version as mine)?

Yes, I think that's my next try, the 5998. Though I think $250 is a lot for some old tubes. My grand father would def be very surprised about this price level if he was alive :-).

Add me on as well (EF86, EF80 - one pairs each)

Thanks Josh for the input. Which drivers do you use with Tung Sol 5998? Do you also listen to vocals and instruments?

Got my LF a month ago, and the last couple of weeks I've been taking notes on what I like and dislike about my tubes so far: Stock tubes: Shuguang 6N5P-J (power tubes), OTK Soviet (driver tubes) Mullard 6080 (rebranded Phillips) 6SJ7WGT Sylvania USA Not used yet as I don’t have the adapter...

I understand your excitement! I hope you'll get it soon. May I ask which driver do you plan to use together with the ordered Mullard's 6080?

Am a rookie here and have a question: Just to be sure, this adapter fit all input drivers on all LF339? I mean I can't find the '6SJ7' as part of my configuration. Is this equivalent with 6J4P? I'm interested as I want to change to a Telefunken EF80. All these numbers :-). I'll learn it sooner...

Is it important that the Chatham 6AS7G is the copper rod version? Lieven suggested me to buy the Chatham or the black plate Rca. Not sure what the latter exactly refers to. I've ordered the Mullard 6080 one to test it out. Will also look into the thread as you mentioned about the modded 6J4)...

Thanks for having a look @wwmf. I'll try them out and make a little review. Unfortunately, I do not have much to compare with yet but one must start somewhere and the only way to get into the game is to try things out. But that's the fun (and somtimes expensive) part of the game as well. :-)

My very first post here, be gentle :-). Last week I got my long expected LF339, coming with the default Chinese tubes, the warm version. I have it connected to a Chord Hugo dac (source is Macbook or iPhone, Tidal HIFI) and my primary use of headphone is HD800 - but also using HD650 and...

Hi everyone. I can't say I know most of you already but I have spend MANY hours reading so many very interesting things in here without contributing at all. Sorry folks. But life is long and I hope to be able to pay it forward - I'm so excited. Talk to you later.