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Does anyone have any experience with the JAN Philips 6DJ8 or 12AT7? What about the JAN GE 12AT7? I have an opportunity to try these and was wondering if anyone had any listening impressions or pros/cons about these tubes. How do they compare to current Sovtek, Ei and Chinese stuff?Many Thanks in advance,
Williee
Hi Willie,Funny you should ask. I was just camparing JAN USA military NOS tubes last night. I tried both Silvania and Phillips (Both basically the same tube). I compared them with Sovtek. I can tell you this they were bright and edgy. So are the Sovteks. I thought in my system the Sovteks were slightly better. Now keep in mind that I just recieved the JAN USA military NOS tubes yesterday and they haven't broken in. So in either case I think they are very close. In my opinion I would go with the Sovtek. However there are much better (and much more expensive tubes) tubes to be had if you are willing to pay the price. I will let you know if the tubes break in and my mind changes.
Hope this helps.
Mr. Vinyl
All tubes are system and component dependent, after that you have to
factor in YOUR preference. I have read that there are also small tube factories in China that relabel new production with NOS Logo's/ Labels.
Hi Mr. Lammers,I'm not exactly sure what your point is. True I have a very revealing system. But we are not talking about a little more high end or a little more foward here. We are talking about a grainy distorted harsh sound. I found the JAN USA military NOS tubes to be all of the above. The guy asked an opinion. Obviously it's system dependent to some extent (I would think that he knows this). But I don't see how adding harsh to any system can make it sound better. I found the Sovteks to be bright but smoother in presentation. As I said above the JAN USA military NOS tubes I used weren't fully broken in yet. Maybe I will come away with a different opinion in a week or two. However everything cannot be lowered down to opinion or nobody would be able to state how anything sounds. Why do we always have to add "in my opinion and with my system".
Mr. Vinyl
The only point is: Tubes are system specific. That is all.
> I'm not exactly sure what your point is. True I have a very revealing > system. But we are not talking about a little more high end or a little > more foward here. We are talking about a grainy distorted harsh sound. I
> found the JAN USA military NOS tubes to be all of the above.I believe you are talking about later model ones in particular.
Note that the JAN (Joint Army-Navy) designation dates from about
WW2. This covers a plethora of tubes made by manufacturers from
CBS-Hytron to Westinghouse, made over a period of about 40 years.
This is an awfully broad group of tubes to make such a generalization
about.I can't believe some of the tubes the military type-accepted
in the 80's...5Z3's being passed off as '83's, triode-wired
6AV5's as 6B4's.
> I found the Sovteks to be bright but smoother in presentation. As I
> said above the JAN USA military NOS tubes I used weren't fully broken in > yet.I take it you are talking about 6DJ8/6922's. I'm not sure what to make of
people's preferences for this tube type, there's guys like Miles
Nestorovic who loved Sylvanias, other people can't stand them. Some folks
like Sovteks, others swear the things make their ears bleed.
There's some things science hasn't explained yet, like why
anyone can stand to drink Miller Lite.Eeyyyeck.One of my erstwhile competitors described recommending
6DJ8/6922/7308's as an "exercise for masochists".> Why do we always have to add "in my opinion and with my system".
Because without this the uninitiated tend to take these statements
as stark raving facts. While the general tendencies of tubes might
(but not in all cases, since operating points play a factor) be
able to be followed between different amps & preamps, whether
they add or detract from a given piece of gear is another question,
and interfacing them with different speakers yet another.Then there's no accounting for taste.You see this in the guitar
amp business in spades, guys like Stevie Ray Vaughan had a stable
of amps and hired a full time tech just to tend to them, but
BB King limped along for years with a solitary solid state
Gibson Lab Series...
Why do we always have to add "in my opinion and with my system".Mr. Vinyl
We have to add that because tubes sound different in different systems,
listening rooms etc. A tube that works well in YOUR X amp may NOT sound
good in my Y amp. That is the point. No flame intended. The circuit a tube is in will also shape the sound.
If the systems are of reasonable quality then the tubes will sound reasonalbley the same. Granted there maybe some incompatabilities but thats not what we are talking about. I'll give an example. Most people feel the Sovteks are edgey or bright. This is because they are.Besides. "IMO" and "In my system" is common knowlege and shouldn't have to be stated everytime. This is like saying "I don't like eggs", sure there are some ways to prepare eggs that maybe I would like but generaly speaking I don't like eggs. I shouldn't have to add "maybe not all recipies with eggs in them" after saying the comment.
Get my drift.
Mr. Vinyl
while there are some inteactions with tubes/equipement, my experience has beena tube's personality usually shows thru, regardless of the equipement.
and yes, there is always personal taste-the IMO is a given, and shoudn't have to be stated EVERY time.
Jack
This has been true in my system..every tube that has been commented on here
basically gives the same impression to me in my system
Is this a joke?
Most of the tubes I've commented on sound wise, I've heard in 2-3 peices of equiement I've owned(some cases auditioned).
Jack
In regards to my comment let me clarify, because after reading what I wrote
it looks as though I'm saying all tubes sound the same...I mean if I
read a common description of the tubes characteristics and then buy that
tube I tend to agree with the overall description of that particular tube
be it a RT,RFT,JJ/Tesla,etc, which thankfully my ears tend to agree with
the general descriptions of the tube in question.
.
my fault, my explanation didn't say what I meant
I have used a pair of the Phillips JAN NOS 12AT7 in my preamp and I found them to be more than adequate, but not exceptional. Several other domestic 12AT7 showed as much and more musicality in my Cary SLP 74.
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