[UntilThen]

Correct. My headphone jacks are 1/4 inch plugs.
 
Was about to post and saw your post LJ.
 
I just bought a pair of cheap Mazda Thorn EF86 from Langrez and adapters from Mrs Xuling. Also bought the c3g to 6sj7 adapter from her because I wanted to try my Valvo c3g/s in LF339. I think Ultra doesn't seem to like the c3g in LF but I want to hear it. 
 
Then I went adapter crazy and got Mrs Xuling to make EF86 to 6sn7 for Elise and will be trying that too.
 
Yup. No comparison between LF339 and DV336se. Figaro has not just the punch and bass weight. It is articulate, with impressive instruments separation and placements. Very nice wide soundstage. Tone is immensely tunable with tubes too.

 

[jono454]

So i ended up buying these tubes,
 
http://www.ebay.com/itm/401284026834?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
Received them yesterday and when i plugged them in i don't think they're working very well if at all. There's static when i adjust the volume and sound is very very low.
 
Not sure if i bought the wrong tubes or something is wrong with them =/ Hoping someone might have an opinion.

 

[miltonic]

Ok good to know. Sounds like plugging the amp into the headphone out on the PC sound card is not going to cut it It appears I really need a DAC to test this, since all my music is off my computer. I might go with your suggestion to get a lower end Schiit DAC, enjoy what I have, and upgrade in time. It will be light years ahead of what I'm currently using.

 

[Liu Junyuan]

So i ended up buying these tubes,

http://www.ebay.com/itm/401284026834?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Received them yesterday and when i plugged them in i don't think they're working very well if at all. There's static when i adjust the volume and sound is very very low.

Not sure if i bought the wrong tubes or something is wrong with them =/ Hoping someone might have an opinion.

Those look like the correct tubes. That sounds like they may be dead. How long did you run them for? If they do not wake up atter running them for a reasonable time, I would contact the seller. I have had one DOA tube so far, and the effect was no sound whatsoever from that channel.

 

[jono454]

Those look like the correct tubes. That sounds like they may be dead. How long did you run them for? If they do not wake up atter running them for a reasonable time, I would contact the seller. I have had one DOA tube so far, and the effect was no sound whatsoever from that channel.

 
I let the amp warm up for about 30 minutes before plugging in headphones and turning volume up.
 
Looks like might be DOA but i'll give it another shot tonight just to be sure.

 

[Ultrainferno]

  Correct. My headphone jacks are 1/4 inch plugs.
 
Was about to post and saw your post LJ.
 
I just bought a pair of cheap Mazda Thorn EF86 from Langrez and adapters from Mrs Xuling. Also bought the c3g to 6sj7 adapter from her because I wanted to try my Valvo c3g/s in LF339. I think Ultra doesn't seem to like the c3g in LF but I want to hear it. 
 
Then I went adapter crazy and got Mrs Xuling to make EF86 to 6sn7 for Elise and will be trying that too.
 
Yup. No comparison between LF339 and DV336se. Figaro has not just the punch and bass weight. It is articulate, with impressive instruments separation and placements. Very nice wide soundstage. Tone is immensely tunable with tubes too.

 
I should test that again. I completely forgot I had those C3G to 6SJ7 adapters. But where to find them...

 

[UntilThen]

  Actually, If I'm not mistaken, that headphone out plug has a balanced connection for some weird connector or something. I can't really remember

 
You are correct.
 
This is a conversation you had with this gentleman from way back then. He converted his HD650 6.5mm jack to a xlr 3pin connector and plug in to the 339 with 'great result' ... in his words.
 
Apparently the 339's headphone connector is a neutrik combo that takes both 6.3mm and 3 pin xlr connectors. 
 
http://www.head-fi.org/t/502306/la-figaro-339/315#post_7470357

 

[UntilThen]

  So i ended up buying these tubes,
 
http://www.ebay.com/itm/401284026834?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
 
Received them yesterday and when i plugged them in i don't think they're working very well if at all. There's static when i adjust the volume and sound is very very low.
 
Not sure if i bought the wrong tubes or something is wrong with them =/ Hoping someone might have an opinion.

 
339 comes with 2 variants of tubes.
 
a.   6j4p / 6sj7 / 6$4c
 
b.   6c5 / 6j5 / 6j5c / L63
 
I believe your 339 is the 'b' variant whereas mine is the 'a' variant. 
 
You wouldn't be able to use RCA 5693 (which is a robust 6sj7 in a metal casing)... unless there is an adapter for it. 
 
In my 339, I'm able to use 6sj7 or 5693 straight in the driver slot without an adapter. I do need an adapter for EF80 and a separate adapter for EF86. Likewise I don't think your version of 339 can use EF80 or EF86.
 
Your version of 339 is supposed to be warmer sounding and there should be enough drivers there to satisfy you.
 
If I'm wrong with this post, please free to correct me.

 

[Liu Junyuan]

Well, I assumed he knew which version of the amp he had. If not, it seems some buyers really need to do some basic research before spending $700 on an amp and randomly purvhasing tubes. If it is the correct version, I would contact the seller.

 

[jono454]

Will be a lesson learned =)

 

[UntilThen]

Well, I assumed he knew which version of the amp he had. If not, it seems some buyers really need to do some basic research before spending $700 on an amp and randomly purvhasing tubes. If it is the correct version, I would contact the seller.

 
Jono bought the amp off @Sonic Defender so he's probably not aware.

 

[Sonic Defender]

Yes mine was the B variant. Sorry to see jono454 has had a tube purchasing misstep. I thought it was clear what variant my 339 was? Sorry to Jon if it wasn't. I was also confident he would be fine as I knew he was active in this thread which is where I was starting to learn about the tubes. Anyway as jono454 has said, it will be a lesson learned, hopefully not a very expensive one.

 

[ReneTS]

Is anyone able to contact Yuking? On the contact form I am not able to see the captcha on either my windows or mac computer. I have tried different browsers, so please tell if anyone has their email?

 

[xmdkq]

You can use this email below xmdkq@tom.com

 

[Liu Junyuan]

It has been back and forth between ZDS and 339 all night. Utopia, HD600, HD650. Yggy via Lynx 16e card as source. Both very good in different ways, but it is totally dependent on tubes, and I am purposely using a darker set in both. 339 remains more dreamy (and thus more immersive) with my transducers, yet powerful and spacious. ZDS slightly more transparent and resolving; slams hard yet more refined. Huge caveat due to tubes used, as I need Bendix, 7236, or GE 6AS7GA for a more neutral set. Tungsol 6SU7GTY RBP as driver in ZDS--if I really wanted to play hard, it would be Mullard ECC35 (but equally so different tubes in 339).

339 is very close to ZDS. And it wins on pure enjoyment level most of the time. I have come to truly appreciate the suggestions upon entering this thread for the RCA 6AS7G/TS EF86 mesh combo.