Woo Audio WA7TP (tube power supply) Impressions Thread
Jul 9, 2014 at 9:37 AM Post #316 of 1,117
I got mine today. Sounds great with the Sylvania 5814A. What an addition to the wa7! If I had to make a critic, I would have harden the feedback of the on/off button and prevented rotation.

Overall great job Woo for this fantastic PSU for the wa7.


Edit: The 1' cord is a great add.

 
The Sylvania 5814A keeps getting good feedback - I get the feeling that I should go straight to it rather than to give the stock tubes a chance!  Agree with you on the on/off button and the shorter cord as well.
 
Jul 9, 2014 at 8:55 PM Post #317 of 1,117
   
The Sylvania 5814A keeps getting good feedback - I get the feeling that I should go straight to it rather than to give the stock tubes a chance!  Agree with you on the on/off button and the shorter cord as well.

I would still recommend listening to the stock tubes, if only to gain an understanding of how the sound is changed. Personally, I found it enjoyable to investigate, but maybe that's just me. It also gave me a greater appreciation of the direction that the JAN 5814A's took the sound.  
 
Jul 10, 2014 at 9:29 PM Post #318 of 1,117
I would still recommend listening to the stock tubes, if only to gain an understanding of how the sound is changed. Personally, I found it enjoyable to investigate, but maybe that's just me. It also gave me a greater appreciation of the direction that the JAN 5814A's took the sound.  
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How much time do you think is needed to consider the stock tubes burned in? Curious as I have a set of sylvania's waiting in the wings :D
 
Jul 10, 2014 at 9:50 PM Post #319 of 1,117
 
How much time do you think is needed to consider the stock tubes burned in? Curious as I have a set of sylvania's waiting in the wings
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20hrs minimum seems to be a fairly accepted number. If you'd prefer to just use the Sylvania JAN 5814A's, by all means go for it. I just think it's nice get a sense of how they differ. Enjoy!
 
Jul 10, 2014 at 10:01 PM Post #320 of 1,117
20hrs minimum seems to be a fairly accepted number. If you'd prefer to just use the Sylvania JAN 5814A's, by all means go for it. I just think it's get a sense of how they differ. Enjoy!


I'm in no hurry. I have about 10 hrs on the stock ones. Just trying to digest all this tube rolling dynamics as I new to the game. Thanks for the info.
 
Jul 11, 2014 at 10:38 PM Post #323 of 1,117
  Great!  Glad to see you guys are catching up.  My WA7P will arrive Monday.  I am going to take day off to await Fedex.  I'm 1/2 retired and self employed, so since I'm the boss I can do it.
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That's great news!  Pls. keep us posted on your impressions.  We would love some pics too.  :wink:
 
Jul 12, 2014 at 9:51 AM Post #324 of 1,117
Received my WA7tp on 7/8 (ordered 5/23) and after only a few hours of listening I can say it was worth the wait! I am using Grado PS500, RS1 and Beyer T1. First up was the PS500 and the improvement was immediately evident. So far I am pleasantly surprised at the difference with this power supply, will be back with further impressions after some more burning in (using stock tubes for now but I have others). Nice job Woo Audio!
 
Jul 12, 2014 at 10:50 AM Post #325 of 1,117
Received my WA7tp on 7/8 (ordered 5/23) and after only a few hours of listening I can say it was worth the wait! I am using Grado PS500, RS1 and Beyer T1. First up was the PS500 and the improvement was immediately evident. So far I am pleasantly surprised at the difference with this power supply, will be back with further impressions after some more burning in (using stock tubes for now but I have others). Nice job Woo Audio!

 
Thank you for the initial impressions.  We would love to see a pic or two as well.  
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Jul 12, 2014 at 12:53 PM Post #326 of 1,117
Mine arrive yesterday and there was an immediate difference with the hd800 paired up with the jds lab ODAC.

Crispier, better bass and mid low, mid high and treble sparkles. No harsh brightness whatsoever. Separation is a ton better too.

the wa7tp is a must have pairing. Very satisfied.

i used the tp stock tubes and the upgrades gold tubes forthe wa7
 
Jul 12, 2014 at 2:18 PM Post #327 of 1,117
Mine arrive yesterday and there was an immediate difference with the hd800 paired up with the jds lab ODAC.

Crispier, better bass and mid low, mid high and treble sparkles. No harsh brightness whatsoever. Separation is a ton better too.

the wa7tp is a must have pairing. Very satisfied.

i used the tp stock tubes and the upgrades gold tubes forthe wa7

 
That's the combination that I'm listening to at the moment, fed by my Hugo, using the upgraded gold tubes on the WA7 and Sylvania JAN 5814A tubes in the TP.   I agree with everything you've said in regards to sound of both the SS PSU and the TP with the stock tubes.  Hard to believe that a change in the PSU - and tubes used with the PSU - can make that much of a difference.  I am a little bit sensitive to brightness though and I do experience a little with this setup but nothing that could be characterized as harsh.  I think it's more the HD800's than anything else.
 
Jul 12, 2014 at 3:57 PM Post #328 of 1,117
Wa7tp getting REALLY hot after 3 hrs of listening with the sylvania jan 5814A, anyone experience this? If feels like it's 90 degrees celsius although it's probably somewhere betwee 75 and 85
 
Jul 12, 2014 at 4:28 PM Post #330 of 1,117
Quote:Originally Posted by mootang Wa7tp getting REALLY hot after 3 hrs of listening with the sylvania jan 5814A, anyone experience this? If feels like it's 90 degrees celsius although it's probably somewhere betwee 75 and 85Yeah. Mine gets pretty hot as well with the same tubes, though I've never found it to be a problem.


Same here. Mine is a tad warm with the JAN's but nothing I'm overly concerned about.


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