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WOO-HOOOO... WA7 "fireflies"!!! - Page 57

post #841 of 2271

After many different chip were tried Jack felt the one we implemented provided the sound we were looking for  with the Wa7

post #842 of 2271

Took a close look at the EH aside the Sovtek tubes today and infact it looks completely true what the russian EH/Sovtek tube maker employee told me, that they are indeed identical tubes just with the EH having the pins plated.  The internals are exact duplicates clearly fabricated on the same machines in the same factory with the same specs.  They should have identical sound characteristics within normal production variation.

post #843 of 2271
Quote:
Originally Posted by groovyd View Post
 
"There are no more stocks of the 6C45Pi EH Gold Pin available. There should
not be a difference in the sound signature. The Sovtek 6C45Pi has the same
specifications as the gold pin version. The EH Gold Pin version are actually
Sovtek 6C45Pi that had the pins gold plated."

 

 

That is the email I got from the maker of EH and Sovtek tubes in Russia.  Take it for what it is worth but if anyone knows the difference should be him.  Apparently the two tubes are identical except the pins are plated expecting no difference in sound signature.  Placebo effect?  Anyway I ordered 6 backup pairs of the EH from Woo just incase as I have scoured every resource I could find to hoard the EH tubes for my own future listening pleasure. Having that tube failure opened my eyes to what might happen if I don't hoard them. Seems Woo is the only one who has them left in the world perhaps.  Was this by accident? ;)

 

 

Quote:
Originally Posted by groovyd View Post
 

Took a close look at the EH aside the Sovtek tubes today and infact it looks completely true what the russian EH/Sovtek tube maker employee told me, that they are indeed identical tubes just with the EH having the pins plated.  The internals are exact duplicates clearly fabricated on the same machines in the same factory with the same specs.  They should have identical sound characteristics within normal production variation.

 

I was told the same thing by a tube dealer when inquiring about the availability of EH 6C45Pi. Having it confirmed by the manufacturer makes me lose some confidence in Woo Audio for marketing them as an upgrade. Although to be fair I don't think they actually say anywhere that it's an upgrade in sound.

 

It's pretty funny though how just about every review/owner claimed the Sovtek and EH sounded different, sometimes with night and day differences!

post #844 of 2271
Quote:
Originally Posted by groovyd View Post
 

Took a close look at the EH aside the Sovtek tubes today and infact it looks completely true what the russian EH/Sovtek tube maker employee told me, that they are indeed identical tubes just with the EH having the pins plated.  The internals are exact duplicates clearly fabricated on the same machines in the same factory with the same specs.  They should have identical sound characteristics within normal production variation.

It could be that the EH were measured on a tube curve tracer and sorted for a tighter quality control. But I think if that were the case it would be touted as a feature, other than the gold pins, which are useful to avoid oxidation in areas such as mine where sea air does have some effect.

post #845 of 2271
Quote:
Originally Posted by atomicbob View Post
 

It could be that the EH were measured on a tube curve tracer and sorted for a tighter quality control. But I think if that were the case it would be touted as a feature, other than the gold pins, which are useful to avoid oxidation in areas such as mine where sea air does have some effect.

True, but that means they would have to plate the pins after the tube is assembled which might be possible but seems unlikely.  Well I bought them so at least I could make believe there is a difference ;)  At least they will be well connected to the amp, even though the tube sockets are so tight already it might not even matter.

 

In any case those who love their WA7 should probably consider picking up as many of either the EH or Sovtek tubes as they can get their hands on now since they are both being phased out of production according to the guy. 

post #846 of 2271
Quote:
Originally Posted by groovyd View Post
 

True, but that means they would have to plate the pins after the tube is assembled which might be possible but seems unlikely.  Well I bought them so at least I could make believe there is a difference ;)  At least they will be well connected to the amp, even though the tube sockets are so tight already it might not even matter.

 

In any case those who love their WA7 should probably consider picking up as many of either the EH or Sovtek tubes as they can get their hands on now since they are both being phased out of production according to the guy. 

 

I noticed quite a difference between the Sovteks and the EH Gold Pins, but I guess that might be because I didn't really burn the Sovteks in like I did the EH's. Only popped them in and gave them a listen for a day before switching back to EH.

post #847 of 2271

Anyone using WA7 with an android tablet or phone? Is it even possible?

Thanks.

post #848 of 2271

Frank posted some updates for the upcoming Tube Power Supply on the Sponsor Announcements thread for the WA7... might want to keep your eyes on it.

 

Quote:
Originally Posted by Frank I View Post
 

The WA7 power supply is slated for a February release. We will make some announcement soon.  

 

 

Quote:
Originally Posted by Frank I View Post
 

The biggest difference is much more transparency. The soundstage becomes much wider and deeper and there is more air around instruments. The differences are not small in my opinion and well worth the additional money plus there are so many tube rolling options with the 12Au7 for people interested in doing that.

 

 

Quote:
Originally Posted by Frank I View Post
 

The final design will be with the same casing as the WA7 to match.   There will  more information coming shortly.

 

 

Sounds exciting! Especially for people who wanted a more transparent sound.

post #849 of 2271
Quote:
Originally Posted by groovyd View Post

True, but that means they would have to plate the pins after the tube is assembled which might be possible but seems unlikely.  Well I bought them so at least I could make believe there is a difference wink.gif  At least they will be well connected to the amp, even though the tube sockets are so tight already it might not even matter.

In any case those who love their WA7 should probably consider picking up as many of either the EH or Sovtek tubes as they can get their hands on now since they are both being phased out of production according to the guy. 
Thanks groovyd for the heads up. Figures, just after discovering how good a 6c45pi sounds and it goes out of production.
post #850 of 2271
Online I can only find 6C45 Sovtek and EH at Woo Audio website. I've ordered a pair of NOS Reflector tubes from eBay as spare.
post #851 of 2271
Quote:
Originally Posted by akhyar View Post

Online I can only find 6C45 Sovtek and EH at Woo Audio website. I've ordered a pair of NOS Reflector tubes from eBay as spare.

 

tubeman.com has the cryo-treated version which is much better than the standard tubes. I just have ordered a set, following a quick email exchange with Ken who stated that they can match a pair for free if you request it in the order. They're about $80 a pair.

post #852 of 2271
Quote:
Originally Posted by PleasantSounds View Post
 

 

tubeman.com has the cryo-treated version which is much better than the standard tubes. I just have ordered a set, following a quick email exchange with Ken who stated that they can match a pair for free if you request it in the order. They're about $80 a pair.

 

Thanks for the link.

I noticed the cyro-treated and the standard tubes are NOS made by Reflector, the same brands as sold by some in eBay.

Do update us on how you find the sound compared to the stock Sovtek and EH tubes once you have the chance.

Cheers mate

post #853 of 2271
Quote:
Originally Posted by akhyar View Post
 

 

Thanks for the link.

I noticed the cyro-treated and the standard tubes are NOS made by Reflector, the same brands as sold by some in eBay.

Do update us on how you find the sound compared to the stock Sovtek and EH tubes once you have the chance.

Cheers mate

 

Quote:
Originally Posted by PleasantSounds View Post
 

 

tubeman.com has the cryo-treated version which is much better than the standard tubes. I just have ordered a set, following a quick email exchange with Ken who stated that they can match a pair for free if you request it in the order. They're about $80 a pair.

+1 , do so plz :P waiting for you review, also what is a higher quality tube that offer the same sound as the EH golden pin tubes? 

post #854 of 2271
Quote:
Originally Posted by sarahkho View Post
 

Anyone using WA7 with an android tablet or phone? Is it even possible?

Thanks.

 The WA7 can be hooked up to the android tablets and phones.  I will post some more update information on how to do this later today. Exciting for Android users

post #855 of 2271

btw wanted to know, the WA7 with EH golden pins tubes, is Neutral, yet can we call it slightly bright? or its just Neutral? how do you feel about it guys?

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