Woo Audio Amp Owner Unite - Page 1535

Quote:

Originally Posted by kchew 

 

To be honest, most of my tubes came from ebay, but some came from vacuumtubes.net

 

For the rectifier, perhaps you can start off with the Mullard CV378, which is $120 at Well Audio at Burlington Square. If the U52 is electrically equivalent to the 5U4G, then the normal Tung Sol or RCA 5U4Gs can be a good starting alternative.

That's excellent advise.  I am assuming $120 is in SGD?  The GEC U52 is S$550! Ouch!

What about the power tubes?  What good?

Quote:

Originally Posted by 683ekips 

That's excellent advise.  I am assuming $120 is in SGD?  The GEC U52 is S$550! Ouch!

 

What about the power tubes?  What good?

Yup, SGD120.

My favourite power tubes are the GEC 6AS7/6080 and Tung Sol 5998. Unfortunately both types are getting rarer and prices are skyrocketing. Otherwise I find the Chatham/Tung Sol 6AS7 pretty good for the price.

Quote:

Originally Posted by Ultrainferno 

Finally had time to roll in some other tubes in Clayton's WA2 and I have to say it improved quite a bit

 

I took out the 5998s and replaced them by simple RCA 6AS7G, giving them a slightly warmer sound

I got a new pair of 6922 Sylvania, smoother sounding as the 7308 Siemens I had before

As rectifiers I'm using a pair of Philips Miniwatt
 

So I finally succeeded in making it sound warmer and more "bassy"

Happy loaner!

 

Btw Clayton, when I give you back the WA2, does that mean I also get chocolates and beer from the States? :D Just kidding ;-)

Did you get more output from this combination?  I have 6080s ( and Philips 6922 with JJ EZ81) and, while I am pretty well satisfied with the current stage and imaging, I could use a little more bass and a lot more output gain via the pre-outs.

Thanks,

SeeHear

I think the RCA 6AS7G will give you more bass as your 6080, but if you want more power you should go for the 7236/5998/2399 tubes imho
 

Woo lists the

5998 and 7236 as having greater power than other power tubes in the manual for a WA22

When I added a pair of  Sylvaina 7236s made a big difference..

Question for 596 owners.  How long do these tubes take to fully burn in?  I rolled in a set into my Decware CSP2+ and Taboo and they sound a bit thin and grainy in the upper mids.  Sounds like a burn-in issue.
 

Quote:

Originally Posted by setamp 

Question for 596 owners.  How long do these tubes take to fully burn in?  I rolled in a set into my Decware CSP2+ and Taboo and they sound a bit thin and grainy in the upper mids.  Sounds like a burn-in issue.
 

I'd say give it 60-100 hours. Beyond that time the sound seemed pretty consistent to me. 

Thanks.  I assume with burn-in the upper mids will smooth out and the tonal balance will become more linear?
 

Yes, that has been my experience. The treble will sound less harsh and grainy.

I didn't really hear any burn-in effects with the 596, it sounded pretty darn good out of the box.

To bump the thread, have some Beautiful British Bulbs.

Quote:

Originally Posted by kchew 

I didn't really hear any burn-in effects with the 596, it sounded pretty darn good out of the box.

 

To bump the thread, have some Beautiful British Bulbs.

 

 

A fine selection, indeed. My '596' was highly selective about drive tubes, but otherwise sounded fine right out of the box.

Clayton,

Have you tried Zombie Dust IPA yet?  Ooooooooooooooooooooooo..................Beer.................

Quote:

Originally Posted by Clayton SF 

 

That's great. I see that you got the WA2 to perform to your excellent standards. Now which headphones are the best with your the new improved WA2?

 

Well, that gives me about a year to find those great Chocolates from the States. Forget the beer from here. I'll pay for an all-you-can-drink evening at In de Wilderman. ;-)

 

This is the beer I had in Vondelpark. I liked it. But really, any beer would have been great on that hot August day in the park.

 

Slightly off-topic, but I can't resist mentioning that I spotted a Woo Audio tube amp in the background of Harvey's office in episode 1 of Suits.

I was proud of that catch, and wanted to share with fellow Woo Audio owners and fans.

Good catch! I had previously pushed for product placement of WooAudio amps in film/tv. Originally, I felt Will Gardner of "The Good Wife" would have been perfect. By the way, which model was it?