Woo Audio Amp Owner Unite - Page 893

Originally Posted by Clayton SF 

Mike, I think that you've voided the WA22's warranty.

Originally Posted by WarriorAnt 

Of course we'll never know but I'd love to hear what Woo would say about the upgraded mod.   

Originally Posted by jc9394 

Jack will be fine as long as the spec of upgrade are all checked out.  He will service it if necessary but you will have to pay for it.  It happened to my WA22 during shipping from HK and I have to ship it to Jack to fix it for me.  The upgrade parts are shook loose during shipping and I did not notice and fried something.  Jack took good care of it for a very reasonable charge.

Originally Posted by jc9394 

Jack said he did not offer the upgrade on WA22 because he can't source the parts.  BGs are very hard to come by these days and the price/SQ is not justifiable.  

Originally Posted by Clayton SF 

Well if Mike likes it. Then perhaps I would consider it as well.

Hey Mike, I know you're using the DAC-2 with your WA22 (pre-mods) with good results but I've recently come across this:

http://www.antelopeaudio.com/en/products_zodiac.html

are you aware of this one? Has anyone else auditioned the Zodiac DAC with their Woo?

Originally Posted by WarriorAnt 

 

The justifiable price point is an interesting point of contention for sure. 

Originally Posted by jc9394 

I can justify them last year but not this year, the price of BGs are almost double than last year.  

 

http://www.ebay.com/itm/BLACK-GATE-NH-series-electrolytic-capacitor-220u-160V-/220670164225

 

That is crazy price increase.

 

Originally Posted by 2359glenn 

 

Yes I removed the bypass caps from the board and used Sprague Atom caps for bypass the two big blue caps those are for the 6AS7s

500uf 100 volt

and the two black caps at the bottom center of the board 250uf 25 volt

 Removing the two bypass caps from the board gave room for the 2 yellow poly caps that I added to bypass the last electrolytic

 capacitors in the power supply that supply power to the 6AS7s.

also changed the 4 6SN7 plate resistors removed the cheep 33000 ohm 5% 1/2 watt resistors with Caddock non inductive

33000 ohm 1% 7 watt resistors

 

Originally Posted by Clayton SF 



Is there any way to make sure you're not getting counterfeits. I'm not sure if they counterfeit caps though but if they can do it to headphones, tubes, etc. well... they can with caps I guess.

Originally Posted by mikemalter 

 

I have a little more time and can post some nicer pictures.

 

 

 

 

 

 

Details of the innards (L then R)

 

 

 

 

 

Details of replacement wireing on headphone outputs.  Balanced outputs send a balanced signal and are disconnected from the single ended

1/4 inch jack by a switch.  That switch will activate when a 1/4 inch jack is plugged in which will then make all output single ended.  The net

effect of this wiring is that the amp is now fully balanced back to front and the default is a balanced output through the balanced headphone

jacks in the front.  If you have a single ended headphone, you plug it into the 1/4 inch jack and then you get a single ended output.  The

sonic effects of this part of the modification are that highs are less congested.  This was an experiment as it's effects were unknown given

the strength of Woo's design.  The sonic impact to me was minimal, and it seems to me that it would not be worth it to just get this done only, however

if you are getting other things done, then it would we worth it.

 

 

 

Originally Posted by Skylab 

I'm sure Glenn provides a warranty for his work.

Originally Posted by dannie01 

There is no magic at all my friend just some rarely found component.