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Woo Audio WA6 SE - Internal Photos, Pg. 10/11 - Page 6

post #76 of 183
I have the stock WA6 SE, so as far as I know there are no black gates in there. That said; I have no clue what type of caps are in there. In response to Takezo's recommendation of returning the amp; well, I REALLY want to like it. It's built like a tank, looks gorgeous, and seems like it's built to last quite a while. Obviously all that doesn't mean too much if I'm not happy with the sound... but I'd like to give the amp as fair a trial as I can. Even if Jack doesn't want to take it back, I can probably sell the amp here later on or trade for something. Either way, right now I'm not at that stage, I'm still going to burn it in some.

As for pics of internals, I'd like to make a proposal. I know didly about amp circuits. If I posted detailed images of the internals and, say, numbered the transformers, caps, etc. would anyone be willing to write up some captions to those numbers explaining what each part is and it's function? It'd be a great service to me and probably a lot of other headfiers. Either PM me or let me know on this thread.
post #77 of 183
Thread Starter 
Try another headphone with your Woo.

I am running a stock WA6 SE using HD650's and I love this amp. I recently purchased the Sophia Princess 274b Rectifier tube and it has taken the amp to a new level. The tube is far from being burned in, but I am blown away by the huge, full soundstage. All frequencies, to my ear, seem really accurate.
post #78 of 183
Quote:
Originally Posted by mmwwhats View Post
I have the stock WA6 SE, so as far as I know there are no black gates in there. That said; I have no clue what type of caps are in there. In response to Takezo's recommendation of returning the amp; well, I REALLY want to like it. It's built like a tank, looks gorgeous, and seems like it's built to last quite a while. Obviously all that doesn't mean too much if I'm not happy with the sound... but I'd like to give the amp as fair a trial as I can. Even if Jack doesn't want to take it back, I can probably sell the amp here later on or trade for something. Either way, right now I'm not at that stage, I'm still going to burn it in some.

As for pics of internals, I'd like to make a proposal. I know didly about amp circuits. If I posted detailed images of the internals and, say, numbered the transformers, caps, etc. would anyone be willing to write up some captions to those numbers explaining what each part is and it's function? It'd be a great service to me and probably a lot of other headfiers. Either PM me or let me know on this thread.
A nice idea on parts and function. It would be interesting for everyone who is new to this.

I think you should try a different rectfier, or have you? They can change the sound quite a bit. It should be less so the more stages you have in a power supply but some things are hard to filter out so the tube rectifer really does play a significant role. What rectifer do you have? What 6DE7?

The umbilical on the SE is also important. The gauge and type of wire used. I have designed and made off chassis power supplies and the wrong wire or too small a gauge can without a doubt have an effect. I have no idea of the topology used.
post #79 of 183
Quote:
Originally Posted by mmwwhats View Post
I have the stock WA6 SE, so as far as I know there are no black gates in there. That said; I have no clue what type of caps are in there. In response to Takezo's recommendation of returning the amp; well, I REALLY want to like it. It's built like a tank, looks gorgeous, and seems like it's built to last quite a while. Obviously all that doesn't mean too much if I'm not happy with the sound... but I'd like to give the amp as fair a trial as I can. Even if Jack doesn't want to take it back, I can probably sell the amp here later on or trade for something. Either way, right now I'm not at that stage, I'm still going to burn it in some.

As for pics of internals, I'd like to make a proposal. I know didly about amp circuits. If I posted detailed images of the internals and, say, numbered the transformers, caps, etc. would anyone be willing to write up some captions to those numbers explaining what each part is and it's function? It'd be a great service to me and probably a lot of other headfiers. Either PM me or let me know on this thread.
as far as returning the unit, i'd send jack an email and see what he
proposes...(from my limited experience, you can't fit a square into a round
opening...) the stock unit will have nichicon caps for power supply and they
don't require long burn-in like the blackgates... so, don't hold your breathe
on the SQ changing significantly... but yes, the choice of rectifier will have
a change. good luck
post #80 of 183
I looked inside and there are rubycon caps throughout. Anyone know about burn in on those caps on those caps? The 6DE7s are from United Electron and the rectifier is a Russian Sovtek 5u4G.
post #81 of 183
the rubycons are very good too. it shouldn't take more than a day
for those to settle. i think my stock wa6, way back then, had
rubycons too and very little change in SQ from day one to day 100...
the sovtek 5u4g are okay but there are many better sounding
rectifiers out there. of course, you'll have to try them out to
see which you like but generally the gz34 are great as well as
the 5r4gy brimar brand. the rca version is good too but softer
or rolled at the top compared to the brimar... the metal base
gz34 and the sophia mesh are quite costly but if you can afford
it try them out to see if they change your mind...
post #82 of 183
Quote:
Originally Posted by jamato8 View Post
A nice idea on parts and function. It would be interesting for everyone who is new to this.

Would you be able to do the labeling and such?
post #83 of 183
Quote:
Originally Posted by mmwwhats View Post
I looked inside and there are rubycon caps throughout. Anyone know about burn in on those caps on those caps? The 6DE7s are from United Electron and the rectifier is a Russian Sovtek 5u4G.
The United Electron was a rebrander so hard to know who made them. I like the RCA's but there are many different ones. The Russian rectifier can be grainy on the high frequencies and frankly I do like it. There are some others that aren't too expensive that would be nice and would give you better mids.
post #84 of 183
As a matter of interest, has anyone tried their WA6 SE with the K1000? Apparently it went down a treat at CanJam?
post #85 of 183
Quote:
Originally Posted by mmwwhats View Post
For reference, I'm using a Cambridge Audio 840C CDP and AKG K701 headphones.
I've not heard the WA6SE but heard both the 840C and 701 - I think these tend to sound relatively bland, clean, and sterile. Couple the SP amp be the one that's adding euphonic colorations that made these combo musical?
post #86 of 183
I notice that the Power cord and interconnection cables are not included.
What about the power supply umbilical cord that connects the amp to the power supply? Is that included? If not, what did you use?
post #87 of 183
I'd bet the power supply umbilical cord is included with the 6 SE...
post #88 of 183
Thread Starter 
Quote:
Originally Posted by CrazyRay View Post
I notice that the Power cord and interconnection cables are not included.
What about the power supply umbilical cord that connects the amp to the power supply? Is that included? If not, what did you use?
Power cord IS NOT included with the WA6 SE. The power cable that connect the PSU to the amp is included.
post #89 of 183
Try a good piece of Metal Base GZ34 - and you will know what your WA6 will be capable of.

The 274B is also nice, but it has a very different character compared to the Metal Base GZ34.

If you can afford it, keep both handy. It will be worth it.

F. Lo
post #90 of 183
Internal pics would be nice
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