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Review: Woo Audio WA6 vs. WA6SE (stock units) - Page 12

post #166 of 508
Thread Starter 
This link might help. I am not able to check my tubes against this right now to see if it is accurate.

http://mysite.verizon.net/tubetronic...TE%20CODES.pdf


The dates do appear on the box flaps, but of course that requires the original box to be with the tube.
post #167 of 508
Sorry for dumb question..

What's the difference between 5U4GB and 5U4G? and is 5U4GB compatible with Woo6?
post #168 of 508
Yes both are compatible with the WA6.

The 5u4gb is the straight shaped, rugged version of the 5u4g, which is ST "coke-bottle" shaped. Their inner construction is also different of course.
I havent tried as many tubes as the experts here, but from what I've read of their comments, the old 5u4g are better regarded than the 5u4gb. My experience with the few tubes I own has certainly been that my Raytheon 5u4g sounded more open and refined than the 1960s Sylvania and RCA 5u4gb I have. Nice thing is that both are quite inexpensive and worth trying out to hear for yourself. The 5u4gb might pair very nicely with the triple.fi.
post #169 of 508

If You Want...

If you want a really dynamic, high impact, muscular sound... try the Tung Sol 5U4GB and the Tung Sol 6DE7s - really something! Great for rock, jazz, acoustic, etc.
post #170 of 508
It seems to be hard to find 6DE7s and 6EW7s. They do not appear to be very common. Is there any alternative for the WA6, as I wouldn't like to get to my last tube and not be able to get any more!
post #171 of 508
They aren't really uncommon but just not as popular as other tubes so they aren't shown for sale as much. It does take some searching.

Oh, I just modified my 6 with some teflon bypass caps for the coupling caps and the first power supply cap. Gotta love those teflons from Russia with love.
post #172 of 508

As Great As...

As great as my WA6 SE Mxd is... my tube line stage out of my Monarchy M24 Tube DAC sounds almost as good (with 2 Amperex 6DJ8s in the DAC, and 2 in the LS). Of course that's with my "new" version HD580/600s. It only drives high impedance phones so well - not so much with low impedance phones.

They both sound phenomenal. But... the Monarchy M24 is just such a tremendous value with both a world-class DAC, and a world class line stage that functions as a headphone amp with conversion cable out of the line stage.

You expect the expensive WA6 SE to sound phenomenal. But... you really don't expect the M24 head amp function to sound almost as good.
post #173 of 508
The Melos SHA Gold pre-amp out XLR driving a pair of Balanced HD600 is also stunning, and beats the Zana Deux or WA6 maxed PDPSU with Sophia.
post #174 of 508
Quote:
Originally Posted by Gradofan2 View Post
If you want a really dynamic, high impact, muscular sound... try the Tung Sol 5U4GB and the Tung Sol 6DE7s - really something! Great for rock, jazz, acoustic, etc.
I took your advice and bought Tung Sol 5U4GB from ebay for $50. Hope they are worth every penny.
post #175 of 508
$50 seems like an awful lot of money for a single 5U4GB. I purchased 2 NOS 1955 Sylvania 5U4GB's for $12 for the 2. I haven't heard the Tung Sol, but I would be surprised if it were THAT much better. There is that possibility though. Anyone care to chime in?
post #176 of 508
Oh, they might be that much better but Tungsols aren't as common and just command higher prices. Tungsol as a tube manufacture was always of very high quality and frankly most of their tubes just sound better. From the 6X4 rectifier from the 1950's to the black glass 6SN7 from the 1940's they just kept on top of what they did.

I have a 5U4G from the 50's coming in NOS and while not 40 or 50 dollars, it did cost a little more than most other 5U4G. I still doubt though that it will be better than the two 274B's I have in the EML and Sophia.
post #177 of 508

You Must Have...

Quote:
Originally Posted by tosehee View Post
I took your advice and bought Tung Sol 5U4GB from ebay for $50. Hope they are worth every penny.
You must have gotten two for that - right? Otherwise, that's a premium price for a Tung Sol rectifier - entering Mullard territory.

I paid around $15, or $20/ea for the two I have - if I recall correctly. Though they are not the ST "Coke Bottle" tubes, which may be more expensive. I haven't been able to find any of those yet.

The Tung Sols are better sounding tubes in almost every tube I've had... but... I don't know that you'll consider them 2x+ better than others. They have a very solid, punchy, smooth sound with pretty good extension, clarity and detail. Soundstage may be a little smaller than the Sophia Princess, though, and resolution may be a little less.

But... we're talking very small differences in sound attributes with any of these tubes - even the Sophia Princess. Though, the Sophia Princess seems it may be better in most aspects of the sound, except the bass slam, and solid punch of the Tung Sols.
post #178 of 508
I think he is talking about the ST or coke bottle shape. Yes they are better and do command a higher price. The 5U4G vs the 5U4GB (straight sided and later normally).

Hey, I got to 6000 posts. Wait, it changed, no longer 6000. . . .
post #179 of 508
Quote:
Originally Posted by jamato8 View Post

Hey, I got to 6000 posts. Wait, it changed, no longer 6000. . . .

John, did anyone ever tell you you're a postoholic?
post #180 of 508
That is over 4 years. Some do that in one year!
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