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post #1396 of 1628
Quote:
Originally Posted by novaca View Post

Do you have some brief comparison of the Cossor GZ37 (53KU) / U52 / Brimar 5Z4G?
Thanks
Sure I'll write something up this week. Brief and to the point.
post #1397 of 1628

Here's a great sounding rectifier I just got the mullard gz 34 it's of course not the more sought after metal base mullard but it still sounds very nice..

 

post #1398 of 1628
Quote:
Originally Posted by abvolt View Post
 

Here's a great sounding rectifier I just got the mullard gz 34 it's of course not the more sought after metal base mullard but it still sounds very nice..

 


I think these are popular because they give a more ss presentation.

post #1399 of 1628

It sure does have a ss sound to it in a tubey kinda way definitely different from other recitifers I have, sounds great..

post #1400 of 1628
Quote:
Originally Posted by abvolt View Post
 

Here's a great sounding rectifier I just got the mullard gz 34 it's of course not the more sought after metal base mullard but it still sounds very nice..

 

The production code on your tube appears to be f32 B4E3, which indicates that it was manufactured in Mullard's Blackburn factory in 1964. You will also find black-base Philips GZ34 manufactured at about the same time, or a little earlier, in Sittard, Holland (factory code X), and Brussels, Belgium (factory code L). I wonder if anyone has compared the sound of these tubes?


Edited by gibosi - 9/28/15 at 6:50pm
post #1401 of 1628
Quote:
Originally Posted by jhljhl View Post


I think these are popular because they give a more ss presentation.

I hear this term quite a bit. What does it mean, as it relates to tubes?
post #1402 of 1628

For me and many other who own tube amps we subjectively describe these amps as having a warmth & richness that at least I think most solid-state amps don't offer maybe the really high end ones do not sure, this mullard gz34 gives my amp a little ss like sound to the music very clean & clear sounding it's actually very noticeable to my ears very cool to listen to. I'm sure other here with more experience with tube amps may have a better explanation of what a ss presentation sounds like..

post #1403 of 1628
Quote:
Originally Posted by abvolt View Post

For me and many other who own tube amps we subjectively describe these amps as having a warmth & richness that at least I think most solid-state amps don't offer maybe the really high end ones do not sure, this mullard gz34 gives my amp a little ss like sound to the music very clean & clear sounding it's actually very noticeable to my ears very cool to listen to. I'm sure other here with more experience with tube amps may have a better explanation of what a ss presentation sounds like..

My experience with ss amps presents their sound all over the place, tonally. Take the V200. I own 3 tube amplifiers, not a one sounds as warm, as thick, and as laid back. Or, a Meier Concerto. It's tonal balance isn't all that dissimilar from my Feliks Elise configured per my preference. We can't even cite a lack of grain as indicative of tube sound, anymore, as quality ss amps are capable of the same. Sure, a piece of aural junk like the O2 sounds grainy and lifeless - what consumer market ss used to sound like 20 years ago. A quality ss amp? No way. I'm attracted to tubes, due to the life and color they introduce into the music. Can a ss amp do that? Sure. It just costs a lot more. This being said, I have not heard a headphone ss amp that is capable of such performance.

beerchug.gif
post #1404 of 1628
Originally Posted by novaca View Post

Do you have some brief comparison of the Cossor GZ37 (53KU) / U52 / Brimar 5Z4G?
Thanks

Ok so I have been trying out the GEC mov u52 vs cossor 53KU (fat bottle gz37) vs we422a in comparison to the first favorite rectifier I used brimar 5z4 and 5r4
The u52 is SS like. Not at holographic or wide. Somewhat for the lack of a better word harsh and somewhat boring. Lasted a day or so. Couldn't get past it's flat sound.

The we422a- well all I can say is this tube is really worth the money. Excellent soundstage. Smooth warm and transparent. Sounded good with just about everything I listened too.

The cossor 53ku, very close to the we422 but little less warmed. Very little less. Sound stage about 90 % of we422a. But I have really warmed up to it. The lows are so much better than most any other rectifier I have used (ecc35s are helping with that also tho) the loses over the we422a are close to being worth it. The wa22 is very lacking in lows so it's nice to have them.

Now when you compare these to the brimar rectifier well brimar doesn't stand a chance but it's the closest you can get for 1/5 the cost. And it really has a nice sound stage. 3D and warm. I liked it because it really smoothed the mids and with jazz mids are nice already.
So my final decision with these is......

The we422a is top dog. Followed close by the cossor 53KU. Then the brimar 5r4
As for the u52 I would not waste your money. And the 5z4 isn't close to the 5r4 to my ears. Well worth the extra money.
We274a will be what I'll test next and let you all know.

🎶🎶🎶
post #1405 of 1628

Thank you once again.
Now I use WA6SE. I liked it with 6em7 + 5z4g and then 6f8g (Glenn adapters). Wow detail and clarity with 6f8g, but bass and warmth is gone, the fun is gone - so seeking a rectifier (53ku?) which would improve it. I was also thinking about an upgrade amplifier to the wa22. But you say:

 

Quote:

Originally Posted by 3083joe View Post

The wa22 is very lacking in lows

 - this applies to Woo amplifiers in general, or just Wa22? (if anyone can compare - with WA6SE).

post #1406 of 1628
Quote:
Originally Posted by novaca View Post

 - this applies to Woo amplifiers in general, or just Wa22? (if anyone can compare - with WA6SE).
My wa6 had more, lots more.
post #1407 of 1628

edited post: can concur about 422a.


Edited by jhljhl - 9/30/15 at 6:59pm
post #1408 of 1628

Seller says it's a Marconi/MWT 5U4G. 

 

Same as a Marconi/MWT U52? 

 

Processed By eBay with ImageMagick, z1.1.0. ||B2

post #1409 of 1628
Quote:
Originally Posted by Contrails View Post

Seller says it's a Marconi/MWT 5U4G. 

Same as a Marconi/MWT U52? 
Looks like regular 5u4g

Processed By eBay with ImageMagick, z1.1.0. ||B2
post #1410 of 1628
Quote:
Originally Posted by 3083joe View Post

The wa22 is very lacking in lows

 

Quote:
Originally Posted by 3083joe View Post

My wa6 had more, lots more.

That really surprises me. Is there anyone who upgraded from WA6SE to WA22 or WA2 (or has both) and can briefly compare? Why the upgrade worth it or not (not only with regard to the lows).

I found a reviews WA6 vs WA6SE or WA2 vs WA22 but almost limited information about WA6SE vs WA2/WA22 ...

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